965 results about "Trimethylsilyl" patented technology

Disclosed herein are organic light emitting devices in which emitting layers (EL) comprise a suitable receiving compound according to Formulas I and II: ##STR1## wherein M is an ion of a divalent or trivalent metal atom, wherein n=3 when M is trivalent, and n=2 when M is divalent, wherein the metal atom is selected from the group consisting of aluminum, gallium, indium, and zinc, and wherein X, Y, and Z are each individually and independently C or N, such that at least two of X, Y and Z are N; and ##STR2## wherein R is alkyl, phenyl, substituted alkyl, substituted phenyl, trimethylsilyl, or substituted trimethylsilyl. Also disclosed are OLED's utilizing device elements comprising the above compounds and display devices based on those OLED's.

A method for reducing the modulus of polymer silicone hydrogel compositions by employing monomeric polysiloxanes endcapped with trimethylsilyl to reduce the crosslinking density of the hydrogel. The synthesis consists of a single vessel acid catalyzed ring opening polymerization and may be employed to produce copolymers useful as hydrogel contact lens materials.

The present invention provides novel thioester derivatives of thiazolyl acetic acid of the general formula (I),wherein, R1 represents H, trityl, CH3, or CRaRbCOOR3, in which Ra and Rb, independently of one another, represents hydrogen or methyl and R3 represents H or C1-C7 alkyl; and R2 represents C1-C4 alkyl or phenyl. The invention also provides a method for preparation of the thioester derivatives and reaction of the thioester derivatives with cephem carboxylic acids to produce cephalosporin antibiotic compounds having general formula (II),wherein, R1 represents H, trityl, CH3, or CRaRbCOOR3, in which Ra and Rb, independently of one another, represents hydrogen or methyl and R3 represents H or C1-C7 alkyl; R4 is CH3, -CH=CH2, CH2OCH3, CH2OCOCH3,and R5 is H or a salt or a carboxylic protecting group, comprising,acylating a compound of formula (III),wherein, R4 and R5 are defined as above, and R6 is H or trimethylsilyl;with a compound of formula (I).

Disclosed is a method of making β-polypeptides. The method includes polymerizing β-lactam-containing monomers in the presence of a base initiator and a co-initiator which is not a metal-containing molecule to yield the product β-polypeptides. Specifically disclosed are methods wherein the base initiator is potassium t-butoxide, lithium bis(trimethylsilyl)amide (LiN(TMS)2), potassium bis(trimethyl-silyl)amide, and sodium ethoxide, and the reaction is carried out in a solvent such as chloroform, dichloromethane, dimethylsulfoxide, or tetrahydrofuran.

A hybrid contact lens includes a substantially rigid center portion and a substantially flexible skirt portion connected to the center portion. The skirt portion is formed using xerogels compatible with diluents comprising at least one selected from polylactic acid, polyglycolic acid, lactide, glycolide, a polyacetal, a cyclic acetal, a polyketal, a cyclic ketal, a polyorthoester, a cyclic orthoester, di-t-butyl-dicarbonate, tris(trimethylsilyl)amine, and 2,2,2-trifluoroacetamide. These diluents are formulated to function as a stand-in for water in the xerogel polymer, allowing the xerogel to form and bond to the rigid center portion in its fully expanded state. Upon hydration of the hybrid lens, substantially little dimensional change, and thus substantially little distortion, is obtained in the skirt portion. The diluents of the present invention further preserve the mechanical integrity of the xerogel, allowing the xerogel to be machined to final shape, improving the dimensional tolerances which can be achieved in the hybrid lens.

The present invention is one kind of 17-hydroxy C27 steroid compound and its synthesis and use. The synthesis process of the present invention is simple and suitable for industrial production in synthesizing pennogenin as well as dihydro pennogenin and OSW-1 aglycone analog.

A rechargeable lithium cell comprising a cathode, an anode, a non-flammable quasi-solid electrolyte containing a lithium salt dissolved in a mixture of a liquid solvent and a liquid additive having a salt concentration from 1.5 M to 5.0 M so that said electrolyte exhibits a vapor pressure less than 0.01 kPa, a vapor pressure less than 60% of the vapor pressure of the liquid solvent alone, a flash point at least 20 degrees Celsius higher than the flash point of the liquid solvent alone, a flash point higher than 150° C., or no flash point, wherein the liquid additive is selected from Hydrofluoro ether (HFE), Trifluoro propylene carbonate (FPC), Methyl nonafluorobutyl ether (MFE), Fluoroethylene carbonate (FEC), Tris(trimethylsilyl)phosphite (TTSPi), Triallyl phosphate (TAP), Ethylene sulfate (DTD), 1,3-propane sultone (PS), Propene sultone (PES), Diethyl carbonate (DEC), Alkylsiloxane (Si—O), Alkylsilane (Si—C), liquid oligomeric silaxane (—Si—O—Si—), Tetraethylene glycol dimethylether (TEGDME), or a combination thereof.

Methods of fabricating a lanthanum oxide layer, and methods of fabricating a MOSFET and / or a capacitor especially adapted for semiconductor applications using such a lanthanum oxide layer are disclosed. The methods include a preliminary step of disposing a semiconductor substrate into a chamber. Tris(bis(trimethylsilyl)amino)Lanthanum as a lanthanum precursor is then injected into the chamber such that the lanthanum precursor is chemisorbed on the semiconductor substrate. Then, after carrying out a first purge of the chamber, at least one oxidizer is injected into the chamber such that the oxidizer is chemisorbed with the lanthanum precursor on the semiconductor substrate. Then, the chamber is purged a second time. The described steps of injecting the lanthanum precursor into the chamber, first-purging the chamber, injecting an oxidizer into the chamber, and second-purging the chamber may be sequentially and repeatedly performed to form a lanthanum oxide layer of a desired thickness having enhanced semiconductor characteristics.

A block copolymer and methods relating thereto. Provided is a copolymer composition including a block copolymer having a poly(methyl methacrylate) block and a poly((trimethylsilyl)methyl methacrylate) block is provided; wherein the block copolymer exhibits a number average molecular weight, MN, of 1 to 1,000 kg / mol; and, wherein the block copolymer exhibits a polydispersity, PD, of 1 to 2.

Disclosed herein are compounds of the formulawherein R1 is independently H or alkyl of 1 to 6 carbons;R2 is optional and is defined as lower alkyl of 1 to 6 carbons, F, Cl, Br, I, CF3, fluoro substituted alkyl of 1 to 6 carbons, OH, SH, alkoxy of 1 to 6 carbons, or alkylthio of 1 to 6 carbons;n is an integer of between 0 and 2;o is an integer between 0 and 3;R3 is hydrogen, lower alkyl of 1 to 6 carbons, F, Cl, Br or I;R4 is heteroaryl or (R5)p-heteroaryl where the heteroaryl group is 5-membered or 6-membered and has 1 to 3 heteroatoms selected from the group consisting of O, S, and N;p is an integer having the values of 0–5;R5 is F, Cl, Br, I, NO2, N(R8)2, N(R8)CORO8, N(R8)CON(R8)2, OH, OCOR8, OR8, CN, COOH, COOR8, C1-10 alkyl, fluoro substituted C1-10 alkyl, C2-10 alkenyl having 1 to 3 double bonds, C2-10 alkynyl having 1 to 3 triple bonds, or a (trialkyl)silyl or (trialkyl)silyloxy group where the alkyl groups independently have 1 to 6 carbons;A is (CH2)q where q is 0–5, C3-6 branched alkyl, C3-6 cycloalkyl, C2-6 alkenyl having 1 or 2 double bonds, or C2-6 alkynyl having 1 or 2 triple bonds;B is hydrogen, COOH or a pharmaceutically acceptable salt thereof, COORO8, CONR9R10, CH2OH, CH2OR11, CH2OCOR11, CHO, CH(OR12)2, CHOR13O, COR7, CR7(OR12)2, CR7OR13O, or Si(C1-6alkyl)3;R7 is C1-5 alkyl, C3-5 cycloalkyl, or C2-5 alkenyl;R8 is C1-10 alkyl, C1-10 (trimethylsilyl)alkyl, or C5-10 cycloalkyl;R9 and R10 are independently hydrogen, C1-10 alkyl, C5-10 cycloalkyl, phenyl or R12-phenyl;R11 is C1-6 alkyl, phenyl, or R12-phenyl;R12 is C1-6 alkyl; andR13 is divalent alkyl radical of 2–5 carbons.

The present invention relates to leave-on compositions for personal care comprising trimethylsilylalkylsilsesquioxanes, particularly trimethylsilyl-n-octylsilsesquioxanes (Caprylyl Trimethicones). Said trimethylsilylalkylsilsesquioxanes are especially useful in formulating emulsions.

A medical device with a hydrophilic and lubricious coating, wherein the coating includes a hydrophilic polymeric unit layer deposited on the medical device and cross-linked with a plasma deposited double bond monomer. The hydrophilic polymeric unit can include ethylene oxide with one or more primary or secondary alcohol groups or glycosaminoglycans such as hyaluronic acid, and the double bond monomer includes monomers containing at least one double bond, preferably a C═C, C═N or C═O bond, including N-trimethylsilyl-allylamine, ethylene, propylene and allyl alcohol.

This invention relates to liquid rinse-off compositions for personal care comprising trimethylsilylalkylsilsesquioxanes, particularly trimethylsilyl-n-octylsilsesquioxanes (Caprylyl Trimethicones). Preferably the rinse-off compositions are shampoos containing pearlescent and / or opacifying agents.

The invention relates to the technical field of lithium ion batteries, in particular to an electrolyte suitable for a silicon-carbon negative electrode lithium ion battery and the silicon-carbon negative electrode lithium ion battery. The electrolyte suitable for the lithium ion battery is prepared from a non-aqueous organic solvent, lithium salt and additives. The additives comprise fluoroethylene carbonate, tris(trimethylsilyl) borate and a sulphate compound with the formula (1) or the formula (2). Compared with the prior art, under the synergistic effect of the three additives in combined use, the capability of changing and controlling SEI composition and stability is achieved, the overall impedance of a formed SEI film is small, and the components and the structure of the SEI film are stable, so that the reversible capacity of the silicon-carbon negative electrode lithium ion battery is greatly increased, the actual discharge capability of the silicon-carbon negative electrode lithium ion battery is greatly improved, then the battery has good cycle performance and good high-and-low temperature performance, and it is guaranteed that the battery can be used within a wide ambient temperature range.

A compound having GSK-3 inhibiting function. A1 and A3 are a single bond, an aliphatic hydrocarbon group; A2 and A4 are a single bond, CO, COO, CONR, O, OCO, NR, NRCO, NRCOO, etc.; G1 is a single bond, an aliphatic hydrocarbon, aromatic hydrocarbon, heterocyclic; G2 is a hydrogen atom, an aliphatic hydrocarbon, an alicyclic hydrocarbon, an aromatic hydrocarbon, heterocyclic; A5 is a single bond, NR; R2 is H, halogen, an aliphatic hydrocarbon, alicyclic hydrocarbon, aromatic hydrocarbon, heterocyclic; A6 is a single bond, NR, CO, NRCO, NRCONR, CONR, COO, O, etc.; R3 is H, halogen, nitro, saturated aliphatic hydrocarbon, alicyclic hydrocarbon, aromatic hydrocarbon, heterocyclic; and when A6 is CR═CR or C≡C; R3 may be a trimethylsilyl, formyl, acyl, carboxyl, alkoxylcarbonyl, carbamoyl, alkylcarbamoyl or cyano group; and R is H or an aliphatic hydrocarbon group.

The invention discloses a preparation method of cefprozil, which comprises: 7-amin cethalosporanic acid (7-ACA) reacts with triphenyl phosphine to get 7- trimethylsilyl amino-3-triphenyl phosphate methylene-4-cethalosporanic acid trimethylsilyl ester through silanization protection and iodination reagent replacing under the condition of catalyst existing; WITTIG reaction is made for the product and acetaldehyde to get 7-trimethylsilyl amino -3-(propenyl-1-alkenyl)-4-cethalosporanic acidtrimethylsilyl ester; then the compound reacts with D-para hydroxybenzene glycine dane potassium salt to geta compound (6R, 7R)-7-[(2R)-2- ethoxycarbonyl-1-methyl - ethylene amino (4-trimethylsilyl oxyphenyl) acetamido group(amide)]-8-oxo-3- (1- propenyl)-5-thio-1- heterobicycle [4.2.0] octylene-2-ene-2-carboxylic acid trimethylsilyl ester; hydrolytic treatment is then used to get the cefprozil. The invent adopts the method of one pot and can participate in next reaction without separating intermediateproducts. The preparation method of cefprozil has the advantages of low cost, convenient operation and high overall yield, adapting to demands of industrial production.

The invention provides a method for preparing chiral 4-substituted dihydrofuran-2(3H)-ketone. The method comprises the following steps: (a) dropwise adding acyl chloride (3) into an organic solvent solution of a compound (1), enabling reaction to obtain an acyl chloride intermediate solution, then dropwise adding an organic solvent solution of a compound (2) and enabling reaction to obtain a compound (4); (b) dropwise adding a bis(trimethylsilyl)amide alkali metal salt solution into an organic solvent solution of the compound (4), enabling reaction, dropwise adding a compound (5) into the obtained reaction liquid and enabling reaction to obtain a compound (6); (c) enabling reaction between the compound (6) and alkali to obtain a compound (7); (d) enabling reaction between the compound (7) and a reducing agent to obtain a compound (8), wherein R is selected from aryl, arylmethyl or alkyl, R1, R2 and R3 are independently selected from alkyl, and X is selected from Cl, Br or I. The method is simple in process, strong in operability and easy for industrial production. The reaction route is shown in the description.

An additive typified by tris(trimethylsilyl)phosphate, tris(trimethylsilyl)borate, and tetrakis(trimethylsiloxy)titanium (Chem. 3) are applied to a nonaqueous electrolyte containing a chain carbonate and / or a chain carboxylate as a main solvent (contained at a ratio of 70 volume % or higher). It is preferable that 0≦a<30 is satisfied, in which “a” denotes the volume of a cyclic carbonate among carbonates having no carbon-carbon double bond in the entire volume, defined as 100, of the carbonates having no carbon-carbon double bond and chain carboxylates in a nonaqueous solvent contained in the nonaqueous electrolyte (0<a<30 in the case no chain carboxylate is contained).

The invention discloses lithium secondary battery overcharge protection electrolyte and a lithium secondary battery. The electrolyte contains electrolyte lithium salts, non-water organic solvents, film forming additives and overcharge protection additives, wherein the film forming additives are at least one kind of materials from TMSP (tris(trimethylsilyl) phosphate) and DTD (dioxathiolane 2,2-dioxide); the overcharge protection additives comprise oxidation and reduction shuttle type overcharge protection additives. The overcharge protection additives used in the electrolyte do not take part in any reaction process at the normal work voltage of 2.75 to 4.35V; when the battery charging voltage exceeds 4.4V, the oxidation and reduction shuttle type overcharge protection additives generate oxidation and reduction shuttle current distribution and voltage limitation on the surface of an electrode; the voltage is controlled to be within a range; the intense decomposition of the electrolyte inside the battery due to too high voltage can be avoided; further, the occurrence of safety problems of combustion, explosion and the like of the battery can be prevented.

Disclosed is a liquid chemical for forming a water-repellent protecting film at least on a surface of a recessed portion of an uneven pattern at the time of cleaning a wafer having a finely uneven pattern at its surface and containing silicon at least a part of the uneven pattern. This liquid chemical contains a silicon compound A represented by the general formula: R1aSi(H)bX4-a-b and an acid A, the acid A being at least one selected from the group consisting of trimethylsilyl trifluoroactate, trimethylsilyl trifluoromethanesulfonate, dimethylsilyl trifluoroactate, dimethylsilyl trifluoromethanesulfonate, butyldimethylsilyl trifluoroactate, butyldimethylsilyl trifluoromethanesulfonate, hexyldimethylsilyl trifluoroacetate, hexyldimethylsilyl trifluoromethanesulfonate, octyldimethylsilyl trifluoroactate, octyldimethylsilyl trifluoromethanesulfonate, decyldimethylsilyl trifluoroacetate and decyldimethylsilyl trifluoromethanesulfonate.

A method of improving the yield and vigor of agronomic plants, in particular leguminous plants such as soybeans, involves treating such plants and / or the propagation material of plants with a composition that includes an active agent, such as a fungicide, that has no significant activity against fungal plant pathogens of the treated plant. When the plant is not wheat, a preferred agent of this type is 4,5-dimethyl-N-(2-propenyl)-2-(trimethylsilyl)-3-thiophenecarboxamide (silthiofam). Plants and plant propagation material, such as seeds, that have been treated by the novel method are also described.

The present invention relates to novel compounds of the formula I which are inhibitors of phosphodiesterase type 10A and to their use for the manufacture of a medicament and which thus are suitable for treating or controlling of medical disorders selected from neurological disorders and psychiatric disorders, for ameliorating the symptoms associated with such disorders and for reducing the risk of such disorders.whereinQ is O or S, X1 is N or CH, X2 is N or C—R7; X3 is O, S—X4═C(R8)—, where C(R8) is bound to the carbon atom which carries R2, or —X5═C(R9)—, where X5 is bound to the carbon atom which carries R2; X4 is N or C—R9; X5 is N;Het is selected from optionally substituted phenyl, monocyclic hetaryl and fused bicyclic hetaryl;R1 is selected inter alia from hydrogen, halogen, OH, C1-C4-alkyl, trimethylsilyl, C1-C4-alkylsulfanyl, C1-C4-alkoxy-C1-C4-alkyl, C1-C4-alkoxy, C1-C4-alkoxy-C1-C4-alkoxy, the moiety Y1-Cyc1;R2 is selected inter alia from hydrogen, halogen, OH, C1-C4-alkyl, trimethylsilyl, C1-C4-alkoxy-C1-C4-alkyl, C1-C4-alkoxy, C1-C4-alkoxy-C1-C4-alkoxy, C2-C4-alkenyloxy, etc;A represents one of the following groups A1, A2, A3, A4 or A5:where * indicates the points of attachment to Het and to the nitrogen atom, respectively;and where R3 to R9, R3e, R3f, A′, Y1 and Cyc1 are defined in the claims.

The invention belongs to the technical field of chemical synthesis and in particular to a preparation method of lithium difluorophosphate. In the method, lithium difluorophosphate is obtained by reaction of lithium hexafluorophosphate with substrate. The preparation method comprises the following steps: 1) under the protection of protective gas, adding lithium hexafluorophosphate into an organic solvent; 2) heating the solution to a dissolving temperature to obtain solution, then dropwise adding tri(trimethylsilane)borate or tri(trimethylsilane)phosphate into the solution, and forming precipitates; and 3) heating the solution to a reaction temperature, stirring at the reaction temperature and reacting, and after the reaction is finished, sequentially filtering, washing and drying precipitates, so that pure lithium difluorophosphate is obtained. The preparation method provided by the invention can be carried out under relatively mild conditions and has relatively high yield of lithium difluorophosphate, and batch production can be carried out without requiring complex operation.

The invention discloses a non-aqueous electrolyte of a lithium ion battery and the lithium ion battery. The electrolyte comprises a non-aqueous organic solvent, a lithium salt and an additive, wherein the additive comprises substances of (A) and (B): (A) is shown in the description, wherein R1, R2 and R3 are respectively and independently selected from alkyl with carbon atoms of 1to 4, and at least one of the R1, the R2 and the R3 is unsaturated alkyl containing triple bonds; and (B) tris(trimethylsilyl) phosphate. By the non-aqueous electrolyte of the lithium ion battery, disclosed by the invention, the lithium ion battery acquires low impedance, and favorable low-temperature performance and high-temperature performance.

A first compound having an atom in an oxidized state is reacted with a bis(trimethylsilyl) six-membered ring system or related compound to form a second compound having the atom in a reduced state relative to the first compound. The atom in an oxidized state is selected from the group consisting of Groups 2-12 of the Periodic Table, the lanthanides, As, Sb, Bi, Te, Si, Ge, Sn, and Al.

Provided is a non-aqueous electrolyte solution including a non-aqueous organic solvent, an imide-based lithium salt, and at least one additive selected from the group consisting of lithium difluoro bis(oxalato)phosphate (LiDFOP), (trimethylsilyl)propyl phosphate (TMSPa), 1,3-propene sultone (PRS), and ethylene sulfate (ESa), as an electrolyte solution additive.According to the electrolyte solution additive for a lithium secondary battery of the present invention, the electrolyte solution additive may improve output characteristics at high and low temperatures and may prevent a swelling phenomenon by suppressing the decomposition of PF6− on the surface of a cathode, which may occur during a high-temperature cycle of a lithium secondary battery including the electrolyte solution additive, and preventing an oxidation reaction of an electrolyte solution.

The object of the present invention is to provide an active energy ray-curable ink-jet printing ink, including: a coloring agent; a compound having an ethylenic double bond; and a photo-polymerization initiator, wherein the photo-polymerization initiator includes a compound represented by general formula (1): (wherein A represents any one of —O—, —CH2—, —CH(CH3)—, and —C(CH3)2—; and each of R1 and R2 independently represents a hydrogen atom, a methyl group, or a trimethylsilyl group), and an α-aminoketone-based compound and / or an acyl phosphine oxide-based compound, and 40% by mass or more of the compound represented by general formula (1) is included with respect to the total photo-polymerization initiator.

The invention provides an Ezetimibe synthesis method comprising the following steps: (a) a compound (5) is subjected to asymmetric reduction reaction to obtain a compound (6), and the compound (6) and tert-butyldimethylsilyl chloride react in an organic solution under the action of alkali to obtain a compound (7); (b) the compound (7) and diisopropylethylamine are dissolved in the organic solution, titanium tetrachloride is added in the organic solution to react at 20-50 DEG C, and a compound (3) is added in the organic solution at minus 20 to minus 60 DEG C to react to obtain a compound (8); (c) the compound (8) and N,O-bis(trimethylsilyl) acetamide react in the organic solution at 20-80 DEG C, tetrabutylammonium fluoride trihydrate is added into the organic solution to react at 20-80 DEG C to obtain a compound (9); (d) the compound (9) is subjected to off-protection reaction to obtain Ezetimibe, wherein R is equal to TBS, Ac or COOCH2CCl3. The invention further provides an Ezetimibe intermediate and a preparation method thereof.

The present invention relates to leave-on compositions for personal care comprising trimethylsilylalkylsilsesquioxanes, particularly trimethylsilyl-n-octylsilsesquioxanes (Caprylyl Trimethicones). Said trimethylsilylalkylsilsesquioxanes are especially useful in formulating emulsions.