CAS: 76-37-9; 2,2,3,3-Tetrafluoropropan-1-Ol

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422-05-9 33420-52-9 425-61-6

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专利信息

专利号:US-9126995-B2
优先权日:2011-11-08
标题:Method for catalytic asymmetric synthesis of optically active isoxazoline compound and optically active isoxazoline compound
发明人：TOYAMA KEN-ICHI; MORIYAMA YUJI; MATOBA KAZUTAKA; YAOSAKA MANABU; IKEDA EITATSU
权利人:NISSAN CHEMICAL IND LTD
摘要:There is provided a method for catalytic asymmetric synthesis of optically active isoxazoline compound and an optically active isoxazoline compound. A method for catalytic asymmetric synthesis of optically active isoxazoline compound of a formula (6) including reacting an α,β-unsaturated carbonyl compound of a formula (1) and a hydroxylamine in a solvent in the presence of a base by adding a chiral phase transfer catalyst. An optically active isoxazoline compound of a formula (13) that can be synthesized by the method.

专利号:US-7423171-B2
优先权日:2006-06-20
标题 :One-step catalytic process for the synthesis of isocyanates
发明人：SERRANO FERNANDEZ FRANCISCO LU; ALMENA MUNOZ BEATRIZ; PADILLA POLO ANA; OREJON ALVAREZ ARANCHA; CLAVER CABRERO CARMEN; CASTILLON MIRANDA SERGIO; SALAGRE CARNERO PILAR; AGHMIZ ALI
权利人:REPSOL YPF SA
摘要:A one-pot process for the synthesis of isocyanates, polyisocyanates or mixtures thereof which includes the steps of:n i. preparing a mixture comprising an amine, an alcohol, an oxygen-containing gas, carbon monoxide, a metal complex catalyst selected from the group consisting of macrocyclic complex catalysts and cobalt Shiff base catalysts; and a solvent selected from the group consisting of aliphatic or aromatic halocarbons, perhalogenated alcohols, halogenated ethers, halogenated ketones, perfluorinated hydrocarbons, polymers of chlorotrifluoroethylene having the formula —(CF 2 —CFCl) n wherein n is between 2 and 10, and mixtures thereof; ii. subjecting the resulting mixture to a first heating under pressure; iii. cooling and depressurizing the mixture resulting from the previous step; and iv. subjecting the mixture of the previous step to a second heating to separate out the isocyanate product from the mixture.

专利号:US-4756739-A
优先权日:1985-12-21
标题 :Pyridine derivatives and the N-oxides thereof, and the use thereof as intermediates for the synthesis of plant protecting agents
发明人：FUSS ANDREAS; KOCH VOLKER
权利人:HOECHST AG
摘要:The compounds of the formula I (I) in which A denotes N or N->O, Z denotes O or NH, R denotes H, (halo)alkyl, (halo)alkenyl, (halo)alkynyl or alkoxycarbonyl, R1 denotes hydrogen, halogen, amino, -NHOH, hydroxyl, (substituted) phenylazo or a radical of the formulae Y=C=N-, Y1Y2C=N-, Y3NH- or K denotes 0 or 1, and m and n, independently of one another, denote a number from 1 to 4, with the proviso that, when Z-R denotes OH or NH2, (R1)n denotes at least one radical of the formula or represents two radicals, in the 5 or 6 position of the heterocyclic ring, which, in the 5 position, denote halogen and, in the 6 position, denote a radical of the group comprising halogen, amino, hydroxyl or phenylazo, which may be substituted as specified above, are valuable intermediates in the synthesis of plant protection agents.

专利号:US-6909010-B2
优先权日:2001-04-11
标题:Facile synthesis of symmetric esters of alkylenebisphosphonic acids
发明人：HERLINGER ALBERT W; STEPINSKI DOMINIQUE C
权利人:UNIV LOYOLA CHICAGO
摘要:A facile synthesis of symmetric esters of C 1 -C 10 alkylenebisphopsphonic acids is disclosed in which a C 1 -C 10 alkylenebis(phosphonic dichloride) is reacted with an alcohol in the presence of a catalytic amount of 1H-tetrazole and a base in an aprotic solvent to form a first reaction mixture. The first reaction mixture is maintained for a time period sufficient to form a C 1 -C 10 alkylenebis(chloro ester phosphonate) that is reacted under basic conditions with an excess of a hydroxylated compound to form a second reaction mixture that is itself maintained for a time period sufficient to form a C 1 -C 10 alkylenebis(ester phosphonate) partial ester, homoleptic tetraester or mixed tetraester. The material so formed can be recovered or used as is.

专利号:US-2022389049-A1
优先权日:2019-10-04
标 题:Reversible terminators for dna sequencing and methods of using the same
发明人：JAIN MOTI; ZHOU WEI
权利人:CENTRILLION TECH INC
摘要:The present disclosure provides methods of sequencing polynucleotides and compounds, compositions for sequencing of polynucleotides, and synthesis of such compositions. The chemical compounds include nucleotides and their analogs which possess a sugar moiety comprising a cleavable chemical group capping the 3′-OH group and a base, but without covalently bounded dye. The cleavable chemical group is reactive to form covalent bond(s) with a dye used to confirm the presence of the expected base-pairing. The cleavable chemical group capping the 3′OH group can be removed together with the covalently bounded dye. Furthermore, after the cleavable chemical group is cleaved, the free 3′-OH group can be active in continued elongation. Example chemical compounds according to the present disclosure are shown as Formulas (II) and (V):

专利号:US-2011060118-A1
优先权日:2009-09-02
标 题:Process for the synthesis of fluorinated ethers of aromatic acids
发明人：RITTER JOACHIM C; MOLOY KENNETH GENE; POLLINO JOEL M; MAHAJAN DU SURBHI
权利人:DU PONT
摘要:Fluorinated ethers of aromatic acids are produced from halogenated aromatic acids in a reaction mixture containing a copper (I) or copper (II) source and a Schiff base ligand that coordinates to copper. The fluorinated ethers of aromatic acids made using the process described herein can be applied to, e.g., fibers, yarns, carpets, garments, films, molded parts, paper and cardboard, stone, and tile to impart soil, water and oil resistance. By incorporating the fluorinated ethers of aromatic acids, or diesters thereof, into polymer backbones, more lasting soil, water and oil resistance, as well as improved flame retardance, can be achieved.