Synthesis of fluorinated hemiketals from the reaction between alcohols and hexafluoroacetone
作者:Huma Lateef、Stephen T Mullins
DOI:10.1016/s0022-1139(00)00216-5
日期:2000.7
hexafluoroacetone (HFA) to give the corresponding hemiketals 2-(2′-phenoxyethoxy)-1,1,1,3,3,3-hexafluoropropan-2-ol (b) and 2-(2′-tetrahydro-pyranylmethoxy)-1,1,1,3,3,3-hexafluoropropan-2-ol (d), respectively. Also, the protected nucleosides 2′,3′-O-isopropylideneuridine (e) and 3,3′-N,O-dibenzoyl-thymidine (g) were treated with HFA to give the corresponding hemiketals 5′-O-(1-trifluoromethyl-1-hydroxytrifluoroethyl)-2′
用六氟丙酮(HFA)处理醇,苯氧基乙醇(a)和(2-羟甲基)四氢呋喃(c),得到相应的半缩醛2-(2'-苯氧基乙氧基)-1,1,1,3,3,3-六氟丙烷-2-醇(b)和2-(2'-四氢-吡喃基甲氧基)-1,1,1,3,3,3-六氟丙烷-2-醇(d)。同样,用HFA处理保护的核苷2',3'- O-异亚丙基亚氨基尿苷(e)和3,3' - N,O-二苯甲酰基胸苷(g),得到相应的半缩酮5'- O-(1-三氟甲基-1-羟基三氟乙基)-2',3' - O-异亚丙基-尿苷(f)和5'- O-(1-三氟甲基-1-羟基三氟乙基)-3,3'- N,O-二苯甲酰基胸苷(h)。