48 results about "Isocyanide compound" patented technology

The invention belongs to the technical field of sulfur-containing organic polymer preparation, and discloses a method for preparing polythiourea by means of polymerizing multiple components of isocyanide, sulfur and amine and application of the polythiourea. The method includes carrying out reaction on amine monomers, isocyanide monomers and elemental sulfur in solvents; cooling, precipitating anddrying reaction products to obtain the polythiourea. The amine monomers are diamine compounds, and the isocyanide monomers are binary isocyanide compounds. The method and the application have the advantages that the method can be implemented under room-temperature and air conditions, is simple and is high in polymerization reaction yield and atom economy, and the polythiourea which is a product is easy to separate; the polythiourea prepared by the aid of the method contains abundant N and S heteroatoms, has special photoelectric properties and has a potential unique application value in the field of biological and chemical fluorescence detection, metallic mercury ion detection and mercury ion removal; the polythiourea is high in metallic mercury ion detection sensitivity, good mercury ionremoval effects can be realized by the polythiourea, and the removal efficiency of the polythiourea is higher than 99.99% and can reach drinking water standards.

A photosensitive metal nanoparticle and a method of forming a conductive pattern using the same, wherein a self-assembled monolayer of a thiol compound or isocyanide compound having a terminal reactive group is formed on a surface of the metal nanoparticle and a photosensitive group is introduced to the terminal reactive group. The photosensitive metal nanoparticles can easily form a conductive film or pattern having excellent conductivity upon exposure to UV, and thus can be applied for antistatic washable sticky mats or shoes, conductive polyurethane printer rollers, electromagnetic interference shielding, etc.

There is disclosed herein phosphorescent compounds, uses thereof, and devices including organic light emitting diode (OLEDs) including such compounds. Compounds of interest include: wherein A is Os or Ru The anionic chelating chromophores N{circumflex over ( )}N, which are formed by connecting one pentagonal ring structure containing at least two nitrogen atoms to a hexagonal pyridine type of fragment via a direct carbon-carbon linkage. L is a neutral donor ligand; the typical example includes carbonyl, pyridine, phosphine, arsine and isocyanide; two neutral L's can also combine to produce the so-called chelating ligand such as 2,2′-bipyridine, 1,10-phenanthroline and N-heterocyclic carbene (NHC) ligand, or bidentate phosphorous ligands such as 1,2-bis(diphenylphosphino)ethane, 1,2-bis(diphenylphosphino)benzene. L can occupy either cis or trans orientation. When L occupies the trans position, the preferred structure contains both the hexagonal fragment of NAN as well as its pentagonal fragment located at the trans position respect to their counterparts of the second NAN chromophore. When L occupies the cis position, the preferred structure consists of the pentagonal unit of N{circumflex over ( )}N chromophores residing opposite to the L. X1, X2 and X3 independently are C or N; when X2 is N, R, is omitted, when X3 is N, R2 is omitted, R1 is H, C1-C8 alkyl, C1-C8 substituted phenyl or C1-C4 perfluoroalkyl, R2 is H, F or cyano substituent, X4 is either C or N; X4 may locate at any position of the hexagonal ring, when X4 is N and R3 and R4 are not linked to X4, R3 is H, methyl or C1-C3 small alkyl, R4 is H, methyl or C1-C3 small alkyl, or R3 and R4 together form an additional conjugated unit with structure

Provided are a novel isocyanide compound, a hydrosilylation reaction catalyst having excellent handling properties and storage properties that allows a hydrosilylation reaction to proceed under moderate conditions by using the isocyanide compound, and a method for producing an addition compound by a hydrosilylation reaction using the hydrosilylation reaction catalyst. A hydrosilylation reaction catalyst prepared from a catalyst precursor comprising a transition metal compound of groups 8, 9, or 10 of the periodic table, excluding platinum, such as an iron carboxylate, cobalt carboxylate, or nickel carboxylate, and a ligand comprising an isocyanide compound having an organosiloxane group.

A photosensitive metal nanoparticle and a method of forming a conductive pattern using the same, wherein a self-assembled monolayer of a thiol compound or isocyanide compound having a terminal reactive group is formed on a surface of the metal nanoparticle and a photosensitive group is introduced to the terminal reactive group. The photosensitive metal nanoparticles can easily form a conductive film or pattern having excellent conductivity upon exposure to UV, and thus can be applied for antistatic washable sticky mats or shoes, conductive polyurethane printer rollers, electromagnetic interference shielding, etc.

A metal complex represented by the following Formula (1):(wherein M represents palladium or platinum; L represents a ligand selected from carbon monoxide, an olefin compound, an amine compound, a phosphine compound, an N-heterocyclic carbene compound, a nitrile compound and an isocyanide compound; n represents an integer of 0 to 2 showing the number of the ligand; and each of R1 to R4 represents an organic group). The metal complex described above can be fixed on an inorganic oxide while maintaining a skeletal structure thereof to obtain a supported metal complex, which makes it possible to allow the supported metal complex to maintain the same catalytic activity as that of the original metal complex. Also, calcining the supported metal complex obtained in the manner described above makes it possible to obtain a supported metal catalyst improved in catalytic activity to a greater extent than conventional supported metal catalysts.

Provided are a novel isocyanide compound, a hydrosilylation reaction catalyst having excellent handling properties and storage properties that allows a hydrosilylation reaction to proceed under moderate conditions by using the isocyanide compound, and a method for producing an addition compound by a hydrosilylation reaction using the hydrosilylation reaction catalyst.A hydrosilylation reaction catalyst prepared from a catalyst precursor comprising a transition metal compound of groups 8, 9, or 10 of the periodic table, excluding platinum, such as an iron carboxylate, cobalt carboxylate, or nickel carboxylate, and a ligand comprising an isocyanide compound having an organosiloxane group.

A hydrosilylation reaction catalyst prepared from: a catalyst precursor comprising a transition metal compound, excluding platinum, belonging to group 8-10 of the periodic table, e.g., iron acetate, cobalt acetate, nickel acetate, etc.; and a ligand comprising an isocyanide compound such as t-butyl isocyanide. The hydrosilylation reaction catalyst has excellent handling and storage properties. As a result of using this catalyst, a hydrosilylation reaction can be promoted under gentle conditions.

α-Aminoamidine polymers and methods of preparing a-aminoamidine polymers by reacting by reacting one or more amines with one or more isocyanides and one or more aldehydes are described. Methods of preparing a-aminoamidine polymers from commercially available starting materials are also provided, wherein the starting materials are racemic or stereochemically pure. a-Aminoamidine polymers or salt forms thereof are preferably biodegradable and biocompatible and may be used in a variety of drug delivery systems and for other purposes as well such as, for example, coatings, additives, excipients, plastics, and materials, etc. Given the amino moiety of these α-aminoamidine polymers, they are particularly suited for the delivery of polynucleotides. Complexes, micelles, liposomes or particles containing the inventive α-aminoamidine polymers and polynucleotides can be prepared. The inventive α-aminoamidine polymers may also be used in preparing microparticles for drug delivery. They are particularly useful in delivering labile agents given their ability to buffer the pH of their surroundings.

A hydrosilylation reaction catalyst prepared from: a prescribed transition metal compound such as iron pivalate, cobalt pivalate, iron acetate, cobalt acetate, or nickel acetate; a ligand comprising t-butylisocyanide or another isocyanide compound; and a borane compound, Grignard reagent, alkoxysilane, or other prescribed promoter makes it possible to promote a hydrosilylation reaction under moderate conditions, and has exceptional handling properties and storage stability.

The invention discloses a preparation method for progesterone. The method comprises the following steps: with the compound 3-(2,2-dimethyl-1,3-dioxopropyl)-5-en-17-one (II) as a starting raw material, subjecting the starting raw material and a sulfonylmethyl isocyanide compound (III) to a condensation reaction under the action of alkali so as to prepare a formamido-sulfonylmethylene compound (IV); subjecting the compound (IV) to dehydration so as to obtain an isocyano-sulfonylmethylene compound (V); carrying out a reduction reaction on the compound (V) so as to prepare an isocyano-sulfonylmethyl compound (VI); subjecting the compound (VI) to methylation so as to obtain an isocyano-sulfonylethyl compound (VII); and carrying out hydrolysis on the compound (VII) so as to obtain the target products progesterone (I). The preparation method is simple in integral process, easy to operate, low in cost and suitable for large-scale production.

The invention relates to benzoxazepin bacteriostats and a preparation method thereof. The chemical structural formula is shown in the specification, wherein substituents R1, R2 and R3 are chloro, bromo, methyl, normal-butyl, p-chlorophenyl, methyl acetate groups, tertiary butyl or cyclohexyl, and positions, the number and conjugate positions of the substituents are not fixed. According to the synthetic method, ortho-azidobenzoic acid compounds and aryl ketoaldehyde compounds and in-situ formed isocyanide compounds are subjected toa Passerini reaction, a formed product and triphenylphosphine are subjected toa Staudinger reaction, and polysubstituted benzoxazepin heterocyclic compounds and other important heterocyclic compounds are produced through ring closing of an intramolecular aza-Wittig reaction. The key point of the invention is to provide one novel synthetic method which adopts fewer steps and has high yield to synthesize the novel benzoxazepin compounds. The compounds have better inhibitory activity on Rhizoctonia solani, Penicillium digitatum and Penicillium italicum and can be used as the bacteriostats.

Macrocyclization of amino acids or linear peptides upon reaction with amphoteric amino aldehydes and isocyanides is provided.

This method is for producing a transition metal complex represented by formula (2), the method comprising reacting a compound containing a transition metal selected from V, Cr, Mo, W, Fe, Ru, Co, Rh, Ni, Pd, and Pt with an isocyanide compound represented by formula (1) in the presence of an alkali metal supported by a solid substance which is insoluble in an organic solvent. This production method can be used to easily and efficiently produce a transition metal complex that includes a predetermined transition metal having an oxidation number of 0 and that has the same or different isocyanide compounds, without using a compound harmful to the human body. (1): (CN)x—R1 {R1 represents a mono- to tri-valent organic group having 1-30 carbon atoms, and x represents an integer of 1-3}. (2): M1a(L)b {M1 represents V, Cr, Mo, W, Fe, Ru, Co, Rh, Ni, Pd, or Pt, and is a zero-valent transition metal, L represents an isocyanide compound represented by formula (1), M1 and L may be the same or different from each other, “a” represents an integer of 1-8, and b represents an integer of 2-12}.

A preparation method of tetraboronic acid compounds includes mixing aldehydes with amines and dissolving them in a solvent to obtain a first solution, stirring the first solution, adding carboxylic acid and isocyanide to obtain a second solution, heating the second solution to obtain a first product, extracting and purifying the first product to obtain tetraboronate ester compounds, and executing a deprotection reaction on the tetraboronate ester compounds under heating by microwave to obtain a second product. The second product contains tetraboronic acid compounds, and the tetraboronic acid compounds have the structure as shown in formula (I).

The invention discloses a method for synthesizing indolizine compounds under the catalysis of silver, which comprises the following steps of in an organic solvent system, stirring N-benzoylmethyl pyridinium bromide as shown in a formula (1) and an isocyanide compound as shown in a formula (2) according to a feeding molar ratio of 1: (1.2-2.0) in the presence of a metal silver salt as a catalyst to react in the air under an alkaline condition, and carrying out TLC tracking detection until the reaction is complete, and carrying out post-treatment on the reaction liquid to obtain the indolizine compound as shown in a formula (3). The method is easy to operate, raw materials and reagents are easy to obtain, reaction conditions are mild, a reaction system is environmentally friendly, products are easy to separate and purify, the yield reaches up to 91%, and the method is suitable for efficient and high-yield preparation of indolizine compounds and particularly suitable for synthesis of various 1, 2-substituted indolizine compounds. The method is suitable for large-scale industrial production, and has wide application prospects and important significance in organic synthesis.