CAS: 1515-14-6; 1,1,1,3,3,3-Hexafluoro-2-Methylpropan-2-Ol

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2378-02-1 920-66-1 17628-73-8

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CAS号684-16-2 六氟丙酮 | CAS号75-16-1 甲基溴化镁 | CAS号74-87-3 氯甲烷 | CAS号7594-49-2 1,1,1-三氯-3,3,3-... | CAS号382-10-5 六氟异丁烯 | CAS号353-50-4 氟光气 | CAS号72971-96-1 bis(trifluorome...

六氟丙酮置于甲基锂体系中,用 乙醚 用作溶剂,化学反应 3.0H,反应生成1,1,1,3,3,3-六氟-2-甲基-2-丙醇
参考文献:Fluorinated Cyanates And Isocyanates. New Type Of Rearrangement
标题:Fluorinated Cyanates And Isocyanates. New Type Of Rearrangement
摘要:
Doi:10.1021/jo01257A018

专利信息

专利号:US-4705904-A
优先权日:1984-02-14
标 题:Vapor phase synthesis of hexafluoroisobutylene
发明人：BONFIELD JOHN H; ULMER HARRY E
权利人:ALLIED CORP
摘要:A vapor phase synthesis of hexafluoroisobutylene, which comprises contacting in the vapor phase in a catalyst zone, B, of a reactor hexafluoropropylene oxide with a fluorinated catalyst such as fluorinated silica-alumina at a temperature of about 400°-600° C. for a residence time sufficient to form a vapor stream comprising hexafluoroacetone which is thereafter directly contacted in a heating zone of the reactor with a vapor stream comprising a keytone-generating compound such as acetic anhydride at a temperature of about 500°-700° C. for a residence time sufficient to form a stream comprising hexafluoroisobutylene, substantially-free of perfluoroisobutylene and recovering the hexafluoroisobutylene product is disclosed. A direct one reactor vapor phase synthesis of hexafluoroisobutylene which comprises (a) contacting, in the vapor phase, hexafluoropropene with less than a stoichiometric amount of oxygen required to convert substantially all the hexafluoroisopropene into hexafluoropropylene oxide in the presence of a fluorinated catalyst such as fluorinated silica-alumina at a temperature of about 400°-600° C. for a time sufficient to form a vapor stream comprising hexafluoropropylene oxide substantially-free of oxygen; (b) directly contacting said vapor stream, in a catalyst zone, B, containing a fluorinated catalyst which is preferably the same as used in catalyst zone, A, at a temperature of about 400°-650°, preferably about 500°-650° C. for a time sufficient to form a vapor stream comprising hexafluoroacetone; (c) directly contacting the vapor stream comprising hexafluroacetone with a vaporized compound such as acetic anhydride at a temperature of about 500°-700° C., preferably about 600° C. for a time sufficient to form a vapor stream comprising hexafluoroisobutylene, substantially-free of perfluoroisobutylene; and (d) recovering hexafluoroisobutylene is also disclosed.

专利号:US-8202985-B2
优先权日:2005-10-31
标 题:Monomer compositions for the synthesis of polynucleotides, methods of synthesis, and methods of deprotection
发明人：DELLINGER DOUGLAS J; TIMAR ZOLTAN; SIERZCHALA AGNIESZKA; DELLINGER GERALDINO; CARUTHERS MARVIN H
权利人:DELLINGER DOUGLAS J; TIMAR ZOLTAN; SIERZCHALA AGNIESZKA; DELLINGER GERALDINO; CARUTHERS MARVIN H; AGILENT TECHNOLOGIES INC; UNIV COLORADO
摘要:Nucleotide monomers, polynucleotides, methods of making each, and methods of deprotecting each, are disclosed. An embodiment of the nucleotide monomer, among others, includes a nucleotide monomer having a heterobase protecting group selected from structures I through III as described herein. An embodiment of the polynucleotide, among others, includes a plurality of nucleotide moieties having a heterobase protecting group selected from one of structures I through III as described herein.

专利号:US-7759471-B2
优先权日:2005-10-31
标题 :Monomer compositions for the synthesis of RNA, methods of synthesis, and methods of deprotection
发明人：DELLINGER DOUGLAS J; TIMAR ZOLTAN; SIERZCHALA AGNIESZKA; DELLINGER GERALDINE; CARUTHERS MARVIN H
权利人:AGILENT TECHNOLOGIES INC; UNIV COLORADO
摘要:Nucleotide monomers, polynucleotides, methods of making each, methods of deprotecting each, and the like are disclosed herein.

专利号:WO-2024061842-A1
优先权日:2022-09-19
标 题:Improved oligonucleotide synthesis
发明人：CREUSEN GUIDO; MINUTH MARCO; SAMSON DANIEL
权利人:BACHEM HOLDING AG
摘要:A method for the solid-phase synthesis of a target oligonucleotide OT is disclosed, wherein said method comprises a step of incubating a nucleoside or oligonucleotide, which is covalently linked to a solid support and comprises a backbone hydroxyl moiety protected by a di(p-methoxyphenyl)phenylmethyl (DMT) protecting group, with a deprotection mixture, thereby cleaving said protecting group from said nucleoside or oligonucleotide, wherein said deprotection mixture is a liquid composition comprising a solvent, a protic acid having a pKa equal to or smaller than 4, and at least one alcohol of Formula (D), wherein in RD-1 R,D-2 R,D-3 RD-4 and RD-5 are indepently of each other selected from the group consisting of H, OH, a e1-e6-alkyl group, O(C1-C6-aIkyl), C(O)(Ci-C6-alkyl), C(O)O(Ci-C6-alkyl), F, Cl, Br, I, and CN. Such a method does not only suppress depurination, but also results in an acceptable product yield.

专利号:US-6215019-B1
优先权日:1998-09-01
标题 :Synthesis of 5-decenyl acetate and other pheromone components
发明人：PEDERSON RICHARD L; GRUBBS ROBERT H
权利人:TILLIECHEM INC
摘要:The present invention relates to syntheses of 5-decenyl acetate, the major component in Peach Twig Borer pheromone, and other pheromone components. The syntheses entails few reaction steps, use commercially available starting materials, and have relatively short process times. A preferred embodiment of the syntheses involves self-metathesizing 1-hexene in the presence of Grubbs' catalyst, [(PCy3)2Cl2]Ru=CHPh. The resulting 5-decene is then reacted with an alcohol or acetate protected hexene under vacuum to yield 5-decenyl acetate. These syntheses produce good yields without the need for expensive or sophisticated equipment.

专利号:US-7399806-B2
优先权日:2003-06-26
标 题:Synthesis of photoresist polymers
发明人：BENOIT DIDIER; SAFIR ADAM; CHANG HAN-TING; CHARMOT DOMINIQUE; OKAMOTO KENJI; NISHIMURA ISAO; WANG YONG
权利人:SYMYX TECHNOLOGIES INC
摘要:The present invention is directed to the preparation of photoresist polymers via living free radical polymerization techniques. Sterically bulky ester monomers are utilized as the polymerization components. Use of chain transfer agents is included in polymerization processing conditions. Cleavage of polymer terminal end groups that include a heteroatom are described.