An Environmentally Friendly Synthesis of Functionalized Indanes Using Electrochemical Cyclization of <i>ortho</i>-Halo-Substituted Homoallyl Ethers and Esters
作者:Elisabet Duñach、Ram Mohan、Sandra Olivero、Rodolphe Perriot、Ashvin Baru、Eric Bell
DOI:10.1055/s-2006-948182
日期:2006.8
indanes catalyzed by Ni(II) catalyst precursors derived from Ni(cyclam)Br 2 , (cyclam = 1,4,8,11-tetraazacyclotetradecane) and Ni(tmc)Br 2 , (tmc = 1,4,8,11-tetramethyl-1,4,8,11 -tetraazacyclotetradecane) is reported. The starting homoallyl ethers were synthesized using either a one-pot method for allylation of aldehydes or by direct allylation of the corresponding acetals using bismuth triflate as a
在衍生自 Ni(cyclam)Br 2 、(cyclam = 1,4,8,11-四氮杂环十四烷)的 Ni(II) 催化剂前体催化下,一系列邻卤代高烯丙基醚和酯电化学环化成官能化茚满报道了Ni(tmc)Br 2 ,(tmc = 1,4,8,11-四甲基-1,4,8,11-四氮杂环十四烷)。使用用于醛烯丙基化的一锅法或使用三氟甲磺酸铋作为催化剂通过相应缩醛的直接烯丙基化来合成起始高烯丙基醚。铋盐的显着低毒性、低成本和易于处理,加上电化学过程的温和性质,使得这种茚满合成方法特别环保且具有吸引力。