120results about "Lithium organic compounds" patented technology

To provide an extractant for selectively extracting lithium salt, a method for recovering lithium salt, and a method for producing lithium salt.SOLUTION: A lithium salt extractant comprises at least one selected from a group consisting of a compound represented by a general formula (1) and a compound represented by the general formula (2) (where X1, X2, X3 and X4 independently represent an oxygen atom, a sulfur atom, a sulfinyl group, a sulfonyl group, a carbonyl group, or an imino group).SELECTED DRAWING: None

The invention features compounds containing an aziridine moiety and methods of synthesizing the same. The compounds may be bound to a monovalent organic moiety and may be used to bind to a target (e.g., a target protein), for example, by cross-linking the target. In some embodiments, the monovalent organic moiety is capable of binding to a presenter protein. Also disclosed are complexes containing the compounds (e.g., presenter protein / compound complexes, compound / target protein complexes, or tri-complexes). Methods of forming the complexes and methods of using the compounds and complexes to modulate biological processes are also disclosed.

The present invention relates to a method for forming C-C bonds using organolithium compounds under continuous flow conditions in a microreactor or mesoreactor system, wherein an organic substrate is reacted with an alkyllithium compound in the presence of a donor solvent to form a Li intermediate, which can be reacted with an electrophile in situ or in a subsequent second reaction step to form an organic secondary product, and the organolithium compound RLi is used as a hydrocarbon solution or hydrocarbon mixture solution, and the RLi concentration is at least 3M, preferably at least 4M. [Selection diagram] None

The present invention relates to a method for producing a lithium metal dispersion that can be used to produce solutions of alkyllithium compounds. More specifically, the present invention relates to a method for producing a dispersion of lithium metal in an organic solvent by melting lithium metal and dispersing the molten lithium metal with stirring in an organic solvent having a boiling point of up to 120°C, followed by cooling to produce a dispersion of lithium metal in the organic solvent. The present invention further relates to a dispersion of lithium metal in an organic solvent having a boiling point of up to 120°C, wherein the lithium metal particles have a particle size greater than 300 microns, and to a method for producing an alkyllithium solution using the lithium metal dispersion.

The present invention provides a nonaqueous electrolyte solution comprising: (I) at least one compound selected from the group consisting of compounds represented by general formula (1) in the description (for example, compounds represented by formula (1a)) and compounds represented by general formula (2) (for example, compounds represented by formula (2a)); (II) a solute; and (III) a nonaqueous organic solvent. Thus, provided are a nonaqueous electrolyte solution that has a low initial resistance value, a nonaqueous electrolyte battery, and a compound that can be suitably used in the nonaqueous electrolyte solution.

A cocrystal having the formula LiX·aM, or a solvate or hydrate thereof, wherein X is a conjugate base of an organic acid, M is a neutral organic molecule, and a is from 0.5 to 4, pharmaceutical compositions comprising such cocrystals, cocrystal solvates, or cocrystal hydrates, and methods of preparing such cocrystals, cocrystal solvates, or cocrystal hydrates, and such pharmaceutical compositions.

Methods for preparing a catalyst precursor material from dihalo-substituted metalloids are provided. The methods In include mixing a first solution of a halogenated alkane, at least one solvent, and a first component selected from a dihalo-substituted-group-14 metalloid or an organolithium reagent in a first reaction zone. Continuously adding the first solution to a second reaction zone, and continuously adding a second solution to the second reaction zone. The second solution including at least one solvent and a second component of either the dihalo-substituted-group-14 metalloid or the organolithium reagent, the second component is different from the first component. Mixing the first solution and the second solution in the second reaction zone.

The invention belongs to the technical field of chemical synthesis of semiconductor materials, and particularly relates to a synthesis method of tetra (dimethylamino) titanium, which comprises the following steps: (1) reacting titanium tetrachloride with dimethylamine to generate an intermediate TiClx [N (CH3) 2] 4-x, where x is an integer from 0 to 4; (2) reacting dimethylamine with an organic metal lithium reagent to synthesize lithium dimethylamino (LiN (CH3) 2); and (3) reacting the intermediate obtained in the step (1) with lithium dimethylamino obtained in the step (2) to obtain tetra (dimethylamino) titanium. By adopting a step-by-step reaction strategy, the dependence on expensive n-butyllithium is fundamentally reduced, the raw material cost is remarkably reduced, meanwhile, the reaction process is optimized by generating an intermediate, the product yield is greatly improved, the generation of byproducts is effectively reduced, and the product purity is improved.

The present invention provides a process for the preparation of aminopyridazine derivatives, and novel pyridazine-based and pyrazole-based compounds which are useful as either starting materials or intermediates in said process.

The invention relates to concentrated dialkylaminoalkyllithium initiator solutions suitable for use as anionic polymerization initiators for olefin-containing monomers and in which the initiator concentration is at least 0.3 mol / L.

Methods for forming a Li-containing film, islet or cluster on a substrate comprise the steps of introducing a vapor of a silicon-free lithium precursor into a reactor and depositing at least part of the silicon-free lithium precursor onto the substrate to form the Li-containing film, islet or cluster using a vapor deposition method.

To provide a metal complex which is useful for producing a negative electrode active material having superior initial coulombic efficiency and capacity retention and a method for producing the same, a negative electrode active material precursor containing the metal complex and a method for producing the same, a negative electrode active material, and a secondary battery having the negative electrode active material.SOLUTION: A metal complex contains a metal cation, the counterion of which includes a carboxylate anion having 2-20 carbon atoms and having a protected amino group.SELECTED DRAWING: None

The application provides an organic lithium supplementing agent, which has the following structure: wherein R1 is selected from -COOLi, -O-COOLi, -NH-COOLi and -C=C-Li; R2 is selected from H, halogen, C 1～3 alkyl, C 1～3 alkoxy, n is 3 or 4, and m+n=5. The organic lithium supplementing agent provided by the application has high specific capacity and low delithiation voltage, the specific capacity is higher than 450 mAh / g, and the delithiation voltage is lower than 4.7 V, which is obviously superior to conventional organic lithium supplementing agents. When the organic lithium supplementing agent is applied to a battery, the energy density of the lithium battery can be increased by 5 mAh / g at most.

The present invention relates to a process for the preparation of a pyridine derivative of formula (I).

The present invention relates to the use of alkali metal phenolic compounds of formula (I) or (II) as catalysts in the ring-opening polymerization of heterocycles such as cyclic esters, ethers and carbonates for the industrial production of biodegradable polymers. The present invention also relates to polymerization processes using these compounds.

The present invention relates to the use of alkali-metal phenolic compounds of formula (I) or (II) as catalysts in ring-opening polymerisation of heterocycles, such as cyclical esters, ethers and carbonates, for the industrial production of biodegradable polymers. The present invention also relates to a polymerisation method using the compounds.

A polycyclic compound represented by Formula 1: and a light emitting device including a first electrode, a hole transport region on the first electrode, an emission layer on the hole transport region, an electron transport region on the emission layer, and a second electrode on the electron transport region are provided. The electron transport region includes a polycyclic compound represented by Formula 1.

An alkali metal monohydrogen cyanurate compound of the chemical formula AM(HC3N3O3)·nH2O (specifically such as KLi(HC3N3O3)·2H2O, RbLi(HC3N3O3)·2H2O, RbNa(HC3N3O3)·2H2O) and a nonlinear optical crystal thereof are related to optoelectronic functional materials. Measured using a powder frequency doubling test method, and the powder frequency doubling effect of the nonlinear optical crystal is about 2-3 times that of KH2PO4 (KDP). The ultraviolet absorption edge of the nonlinear optical crystal is shorter than 250 nm. The nonlinear optical crystal can achieve the harmonic generator of double, triple, or quadruple frequency for Nd: YAG (λ=1.064 μm). Moreover, the nonlinear optical crystal is of a single crystalline structure, is colorless and transparent, and does not deliquesce in air.

The present invention provides a (6Z)-6-tridecenyl metal compound (1) wherein M1 represents Li or MgZ1, and Z1 represents a halogen atom or a (6Z)-6-tridecenyl group; also provided is a method for preparing a compound (1) comprising the steps of: preparing a (3Z)-3-decenyl metal compound (3) from a 1-halo-(3Z)-3-decenyl compound (2), where X1 represents a halogen atom, where M2 represents Li or MgZ2, and Z2 represents a halogen atom or a (3Z)-3-decenyl group; a coupling reaction of the compound (3) with a 1, 3-dihalopropane compound (4), where X2 and X3 independently of each other represent a halogen atom, to form a 1-halo-(6Z)-6-tridecene compound (5), where X4 represents a halogen atom; and preparing a (6Z)-6-tridecenyl metal compound (1) from the compound (5).

The present application relates to an intermediate of fulvestrant and a preparation method thereof. Specifically, the present application relates to a compound as shown in formula V and a preparation method thereof, wherein R 1 is hydrogen or a hydroxyl protecting group. The present application also relates to a preparation method for synthesizing fulvestrant via the compound as shown in formula V, which has the advantages of short reaction steps, mild and safe reaction conditions, high selectivity, simple operation and purification, high synthesis efficiency, and is suitable for large-scale production.

A polycyclic compound represented by Formula 1: and a light emitting device including a first electrode, a hole transport region on the first electrode, an emission layer on the hole transport region, an electron transport region on the emission layer, and a second electrode on the electron transport region are provided. The electron transport region includes a polycyclic compound represented by Formula 1.

This invention provides a novel method for manufacturing fluorinated carboxylate compounds, for producing formula (P1): (B 1f ) mp (A) 1 ) np [B] 1f RfCOO; Rf is a hydrocarbon group having one or more fluorine atoms; A 1 It is a group other than H; mp is (A 1 The valence of () × np and is 1 or 2; np is mp / (A 1 The valence of A is 1; 1 The method of manufacturing a compound having a valence of 1 or 2 includes: making formula (S1): (B 1f (R) 1 ) [R 1 The compound shown is an organic group and is related to formula (S2): (A 1 ) ms2 (B) 2 ) ns2 [B] 2 It is OH, CO3 or HCO3; ms2 is (B 2 (valence) × ns2 / (A) 1 The valence of ns is 1 or 2; ns2 is (A 1 (value) × ms² / (B) 2 The reaction of the compound or its hydrate shown in the figure (with a valence of 1 or 2) is a step A.

Provided is a molten salt having a low glass transition temperature. A molten salt according to an embodiment includes an alkali metal salt having an anion having an amide structure or a methylate structure, or an anion selected from the group consisting of BF4, PF6, ClO4, CF3SO3, C2F5SO3, C4F9SO3, and CF3CO2, and 5 mol% to 50 mol% of an organic polymer, the alkali metal salt having an anion having an amide structure or a methylate structure, or an anion selected from the group consisting of BF4, PF6, ClO4, CF3SO3, C2F5SO3, C4F9SO3, and CF3CO2. The organic polymer is one or more kinds of polar functional groups of N, O and F coordinated with cations of the alkali metal salt, and the glass transition temperature of the organic polymer is lower than the glass transition temperature of the alkali metal salt simple substance.

The invention relates to the technical field of tert-butyllithium preparation, in particular to a tert-butyllithium preparation method which comprises the following steps: preparing raw materials, dissolving lithium and washing oil, mixing the raw materials to start reaction, dropwise adding a modifier, carrying out heat preservation treatment, cooling, settling and taking clear liquid. According to the method, trace impurities on the surface of lithium are removed in the pretreatment link, the PVP coating can block contact of water, oxygen and lithium in a long-acting mode, lithium is prevented from going bad in the earlier stage of storage and reaction, and meanwhile the compatibility of lithium and organic solvents such as n-pentane is enhanced; the interference of impurities on the reaction can be eliminated in a high-purity state of the chlorinated tert-butane, byproducts such as lithium tert-butoxide are prevented from being generated, the moisture in the system is strictly limited by deep dehydration, a stable anhydrous environment is provided for synthesis of the tert-butyllithium, and the reaction efficiency is guaranteed; the operation of deep dehydration and impurity removal by activated aluminum oxide creates a high-cleanliness solvent system for the reaction, avoids the action of water and polar impurities with tert-butyllithium or reaction intermediates, and prevents product decomposition or impurity generation.

The present invention provides a mechanochemical reaction method and reaction apparatus that allows for operations such as adding reagents during the reaction, removing reaction products, and adding substrates for the next reaction without removing the lid of the reaction vessel, while preventing a decrease in reaction efficiency and ensuring safety. Furthermore, it allows for checking the state inside the reaction vessel, and improves operability and workability, while shortening (accelerating) the reaction process. [Solution] A mechanochemical reaction method using a reaction apparatus comprising a reaction vessel A having an opening and a lid 12 that can open and close to seal the opening 13 of the reaction vessel, wherein one or more through holes 21 are provided in the reaction vessel other than the opening and / or in the lid, allowing communication between the inside of the reaction vessel and the outside of the reaction vessel.

An organic electroluminescent element having a cathode, an anode, and one or more organic layers disposed between the cathode and the anode; at least one of the one or more organic layers contains a first component and a second component; the first component is a compound represented by formula (1), and the second component is selected from the group consisting of an alkali metal, an alkali metal compound, an alkaline earth metal, an alkaline earth metal compound, a rare earth metal, a rare earth metal compound, an alkali metal-containing organometallic complex, an alkaline earth metal-containing organometallic complex, and a rare earth metal-containing organometallic complex.

The present invention addresses the problem of providing: an electrolyte that can be used to produce a power storage device and has an excellent balance between solubility in organic solvents (non-aqueous solvents), charge / discharge efficiency, -10°C resistance value, cycle characteristics (volume change rate, capacity retention rate, resistance change rate), and high-temperature characteristics; a reinforcing agent; an electrolyte solution; a power storage device produced using the same; and a method for producing a lithium boron fluoride complex compound and a lithium complex compound for an electrolyte or a reinforcing agent. This electrolyte for a power storage device contains a lithium boron fluoride complex compound having a specific substituent.

The present invention provides a mechanochemical reaction method and reaction apparatus that allows for operations such as adding reagents during the reaction, removing reaction products, and adding substrates for the next reaction without removing the lid of the reaction vessel, while preventing a decrease in reaction efficiency and ensuring safety. Furthermore, it allows for checking the state inside the reaction vessel, and improves operability and workability, while shortening (accelerating) the reaction process. [Solution] A mechanochemical reaction method using a reaction apparatus A comprising a reaction vessel 11 having an opening and a lid 12 that seals the opening 13 of the reaction vessel in an openable and closable manner, wherein one or more through holes 21 are provided in the reaction vessel other than the opening and / or in the lid, communicating the inside of the reaction vessel with the outside of the reaction vessel.

The invention relates to the technical field of argon graded replacement, in particular to an argon graded replacement method for synthesizing n-butyllithium. Comprising the following steps: arranging a gas accommodating cavity between adjacent reaction kettles, and controllably communicating the gas accommodating cavity with a gas outlet of a front-stage reaction kettle and a gas inlet pipeline of a rear-stage reaction kettle through a control valve group; firstly, pretreatment equipment (a branch pipe) of a single kettle is started, argon is introduced, mixed gas in a pipeline blind area is removed, then the argon time sequence and flow of upstream, downstream and midstream gas inlets are controlled, a stable pressure gradient is formed, and the mixed gas in the kettle is directionally pushed to a gas containing cavity; mixed gas in the front-stage gas accommodating cavity is introduced into the rear-stage kettle for repeated replacement and is finally discharged from the tail end; according to the method, blind area purification is enhanced, the replacement efficiency is improved, argon consumption is reduced, inert gas waste is reduced, carbon emission reduction is assisted, and atmospheric pollution prevention and control are assisted.