📜Hexafluoro-Pentanedioic Acid,Disodium Salt 以 乙二醇作为反应溶剂,反应 9.0H,以91%的收率获得1,1,2,2,3,3-Hexafluoropropane 参考文献:Practical Preparation Of Some Potentially Anesthetic Fluoroalkanes: Regioontrolled Introduction Of Hydrogen Atoms 标题:Practical Preparation Of Some Potentially Anesthetic Fluoroalkanes: Regioontrolled Introduction Of Hydrogen Atoms 摘要:Methods Are Described For The Large-Scale Preparation Of A Number Of Fluoroalkanes,Which Have Been Tested For General Anesthesia. Doi:10.1016/S0022-1139(00)80199-2
专利信息
专利号:US-6048975-A 优先权日:1991-09-12 标 题:Process for the chemical synthesis of oligonucleotides 发明人:PFLEIDERER WOLFGANG; BERGMANN FRANK 权利人:HOECHST AG 摘要:A process for the chemical synthesis of oligonucleotides n Use of a dansylethoxycarbonyl group as base-labile 5'-hydroxyl protective group in the chemical synthesis of DNA and RNA and suitable synthetic processes. n The ease of detection of the dansyl protective group and the ease of elimination from the sugar residue of the nucleotide without side reactions make oligonucleotide synthesis possible with high yields in very small quantities.
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-5945524-A 优先权日:1990-09-14 标 题 :Process for the chemical synthesis of oligonucleotides 发明人:PFLEIDERER WOLFGANG; BERGMANN FRANK 权利人:HOECHST AG 摘要:Use of a dansylethoxycarbonyl group as base-labile 5'-hydroxyl protective group in the chemical synthesis of DNA and RNA and suitable synthetic processes. n The ease of detection of the dansyl protective group and the ease of elimination from the sugar residue of the nucleotide without side reactions make oligonucleotide synthesis possible with high yields in very small quantities.
专利号:US-7304191-B2 优先权日:2000-08-07 标 题:Process for the synthesis of fluoroorganic compounds 发明人:MATHIEU VERONIQUE; JANSSENS FRANCINE; FRANKLIN JAMES 权利人:SOLVAY 摘要:The present invention relates to a fluorination method for the synthesis of halofluoroorganic compounds which can be used, inter alia, as precursors in the synthesis of 2,3-unsaturated fluoroorganic carbonyl compounds comprising a fluorine substituent in the 2 position.
专利号:US-4328376-A 优先权日:1980-03-31 标 题 :Method of removing fluorinated olefin byproduct formed during the synthesis of a fluorinated ether 发明人:BERGER ARTHUR; SIMON ROBERT L 权利人:BAXTER TRAVENOL LAB 摘要:The method of removing fluorinated olefin byproduct formed during the synthesis of a fluoromethylhexafluoroisopropyl ether product or the like comprises: adding ammonia or an amine to the mixture to react with the fluorinated olefin byproduct, and thereafter distilling the fluoromethylhexafluoroisopropyl ether product to remove it from the byproduct.
专利号:US-5861540-A 优先权日:1986-10-29 标题:Substituted 1,1,1-triaryl-2,2,2-trifuoroethanes and processes for their synthesis 发明人:ALSTON WILLIAM B; GRATZ ROY F 权利人:NASA 摘要:Synthetic procedures to tetraalkyls, tetraacids and dianhydrides substituted 1,1,1-triaryl-2,2,2-trifluoroethanes which comprises: (1) 1,1-bis(dialkylaryl)-1-aryl-2,2,2 -trifluoroethane, (2) 1,1-bis(dicarboxyaryl)-1-aryl-2,2,2-trifluoroethane or (3) cyclic dianhydride or diamine of 1,1-bis(dialkylaryl)-1-aryl-2,2,2-trifluoroethanes. The synthesis of (1) is accomplished by the condensation reaction of an aryltrifluoromethyl ketone with a dialkylaryl compound. The synthesis of (2) is accomplished by oxidation of (1). The synthesis dianhydride of (3) is accomplished by the conversion of (2) to its corresponding cyclic dianhydride. The synthesis of the diamine is accomplished by the similar reaction of an aryltrifluoromethyl ketone with aniline or alkyl substituted or disubstituted anilines. Also, other derivatives of the above are formed by nucleophilic displacement reactions.
摘要:Toxicologist., 30(291), 1996 摘要:Lewis, R.J. Sr. (ed) Sax's Dangerous Properties of Industrial Materials. 11th Edition. Wiley-Interscience, Wiley & Sons, Inc. Hoboken, NJ. 2004., p. 1931 摘要:Franke C et al; Chemosphere 29: 1501-14 (1994) 摘要:USEPA/Pollution Prevention and Toxics; 2012 Chemical Data Reporting Database. Propane, 1,1,1,3,3,3-hexafluoro- (690-39-1). Available from, as of Mar 15, 2016: 摘要: