CAS: 4187-87-5; 1-Phenyl-2-Propyn-1-Ol

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Tert-Butyl Dimethyl((1-Phenylprop-2-Yn-1-yl)Oxy)Silane置于hafnium Tetrakis(Trifluoromethanesulfonate)体系中,用 甲醇 作为反应溶剂,化学反应 4.0H,以95%的收率获得产物(+/-)-1-苯基-2-丙炔-1-醇
参考文献:三氟甲磺酸late作为硅醚的区域和化学选择性脱保护的高效催化剂
标题:三氟甲磺酸late作为硅醚的区域和化学选择性脱保护的高效催化剂
摘要:摘要 作为ivb族过渡金属路易斯酸,三氟甲磺酸[[hf(otf)4]在脱甲硅烷基化反应中表现出极高的效能.由于1°,2°,3°烷基和芳基叔丁基二甲基甲硅烷基(tbs)醚的脱保护所需的hf(otf)4的量显着不同,范围为0.05 Mol%至3 Mol%,因此tbs的区域选择性脱保护可以轻松实现.此外,还实现了在大多数羟基保护基存在下,不同甲硅烷基醚的化学选择性裂解或tbs的去除.来自tbs脱保护的甲硅烷基产物的NMR分析表明,取决于所使用的溶剂,Hf(otf)4催化的甲硅烷基化可能通过不同的机理进行. 作为ivb族过渡金属路易斯酸,三氟甲磺酸[[hf(otf)4]在脱甲硅烷基化反应中表现出极高的效能.由于1°,2°,3°烷基和芳基叔丁基二甲基甲硅烷基(tbs)醚的脱保护所需的hf(otf)4的量显着不同,范围为0.05 Mol%至3 Mol%,因此tbs的区域选择性脱保护可以轻松实现.此
DOI:10.1055/s-0037-1610307

专利信息

专利号:US-8129560-B2
优先权日:2005-08-15
标 题 :Process for the synthesis of mandipropamid and derivatives thereof
发明人：BOWDEN MARTIN CHARLES; CLARK THOMAS AITCHESON; GIORDANO FANNY; JAU BEAT; SCHNEIDER HANS-DIETER; SEIFERT GOTTFRIED; ZELLER MARTIN; FABER DOMINIK; WISS JUERG
权利人:BOWDEN MARTIN CHARLES; CLARK THOMAS AITCHESON; GIORDANO FANNY; JAU BEAT; SCHNEIDER HANS-DIETER; SEIFERT GOTTFRIED; ZELLER MARTIN; FABER DOMINIK; WISS JUERG; SYNGENTA CROP PROT INC
摘要:A process for the preparation of a compound of formula (I), the process comprising: (i) the reaction of a compound of formula (III), with a compound of formula (IV) to give a compound of formula (II), and (ii) the reaction of the compound of formula (II) with a leaving group, to give the compound of formula (I).

专利号:US-3635999-A
优先权日:1969-03-25
标 题 :Synthesis of oxazoles
发明人：TRAMIER BERNARD; BONZOM ALBERT
权利人:AQUITAINE PETROLE
摘要:WHERE R2 IS ALKYL OF 1 TO 6 CARBON ATOMS, PHENYL OR HYDROXYPHENYL, R4 IS METHYL AND R5 IS HYDROGEN. A PROCESS OF PREPARING OXAZOLES IS DISCLOSED COMPRISING CONDENSING AN ACETYLENIC COMPOUND HAVING AN ELECTRONEGATIVE GROUP ON THE CARBON ATOM IN THE X-POSITION RELATIVE TO THE TRIPLE BOND WITH AN AMMONIUM SALT OF AN ORGANIC ACID OR AN AMIDE. 2-R2,4-R4,5-R5-OXAZOLE NEW OXAZOLES ARE PREPARED HAVING THE FORMULA

专利号:US-3676442-A
优先权日:1968-11-22
标 题:Synthesis of pyrazines
发明人：BONZOM ALBERT; TRAMIER BERNARD
权利人:AQUITAINE PETROLE
摘要:Hydrocarbon substituted pyrazines are prepared by the reaction of an ammonium compound having NH4 or NH2 groups with an acetylene compound having an oxygen atom linked to the acetylenic unit, the reaction being conducted in an acid medium, preferably containing formic acid or a formate.

专利号:US-9981923-B2
优先权日:2014-06-20
标 题:1,2,3 Triazole antifungal agents and preparation thereof
发明人：CHEPURI VENKATA RAMANA; DESHPANDE MUKUND VINAYAK; TUPE SANTOSH GENBA; KOMMAGALA YADAGIRI
权利人:COUNCIL SCIENT IND RES
摘要:The present application relates to 1,4-disubstituted 1,2,3-Triazole antifungal agents of the formula (I) wherein, R1 is halogens such as fluorine, chlorine or bromine, CF3, alkyl; R2 is alkyl or hydrogen; R3 is halogen selected from fluorine, chlorine or bromine; and n is 0 or 1. The application further relates to the synthesis of said compounds, to fungicidal compositions containing said compounds and to their use in a method for treating fungal infections.

专利号:US-2024294449-A1
优先权日:2021-06-21
标题 :Process for the synthesis of propargylic alcohol by reacting formaldehyde with acetylene in the presence of a homogeneous copper catalyst

专利号:US-2009118532-A1
优先权日:2005-08-15
标 题:Process for the Synthesis of Mandipropamid and Derivatives Thereof