Reaction of 1,1,2-trifluoro-2-hexafluoro-2′-(heptafluoropropoxy)-propoxyethylene with amines or alcohols
作者:Georgii G Furin、Luiza S Pressman、Leonid M Pokrovsky、Aleksei P Krysin、Ki-Whan Chi
DOI:10.1016/s0022-1139(00)00290-6
日期:2000.10
fluoroacetic acid (as a mixture of diastereomers) were obtained. The use of diethanolamine produces 2-fluoro-2[hexafluoro-2′-(heptafluoropropoxy)-propoxy]-methyl}-4,5,7,8-tetrahydro-[1.6.3]dioxasozine. Reaction of 1,1,2-trifluoro-2′-hexafluoro-2′-(heptafluoropropoxy)-propoxyethylene with alcohols (methanol, ethanol, β,β,β-trifluoroethanol, 2-methoxyethanol, 2-ethoxyethanol, iso-propanol, butanol and pentafluorophenol)
1,1,2-三氟-2-六氟-2'-(七氟丙氧基)-丙氧基乙烯与仲胺(二甲胺,二乙胺,二丁胺,吡咯烷,哌啶,吗啉)的反应可导致全氟-2-丙氧基-3(1H ′)-乙氧基-2″-烷氧基丙烷-双键的加成产物-或α-取代的氟乙酸的N,N-二烷基酰胺的加成产物,取决于所使用的溶剂和粗产物的以下后处理。与伯胺(丙胺,丁胺,一乙醇胺),含氟亚胺或N获得了α-取代的氟乙酸的α-烷基酰胺(作为非对映异构体的混合物)。使用二乙醇胺可产生2- 氟-2 [六氟-2'-(七氟丙氧基)-丙氧基]-甲基} -4,5,7,8-四氢-[1.6.3]二恶唑嗪。1,1,2-三氟-2'-六氟-2'-(七氟丙氧基)-丙氧基乙烯与醇类(甲醇,乙醇,β,β,β-三氟乙醇,2-甲氧基乙醇,2-乙氧基乙醇,异丙醇,丁醇和五氟苯酚)在四氢呋喃(环丁砜,DMSO,乙腈)中的KOH存在下或在醇介质中的烷醇钠的存在下,仅生成相应的醚,为非对映异构体的混合物。用1