Aminium salt induced cyclodimerization of stilbenes in 1,1,1,3,3,3-hexafluoropropan-2-ol
作者:Francesco Ciminale、Luigi Lopez、Gianluca M Farinola
DOI:10.1016/s0040-4039(99)01447-1
日期:1999.10
The aminium salt induced reactions of stilbenes (1a-d), affording a mixture of indane (2a-c) and/or tetrahydronaphthalene derivatives (3a,c,d), were found to occur with remarkably higher efficiency in 1,1,1,3,3,3-hexafluoropropan-2-ol (HFP) than, if at all, indichloromethane (DCM) solutions. This solvent effect seems consistent with an electron-transfer mechanism via radiacal cations 1+ that chemical
发现在1,1,1的效率较高的情况下,铵盐引发的对苯二甲酸酯(1a-d)反应提供了茚满(2a-c)和/或四氢萘衍生物(3a,c,d)的混合物。,3,3,3-六氟丙烷-2-醇(HFP)比二氯甲烷(DCM)溶液(如果有的话)要高。这种溶剂作用似乎与通过醛阳离子1 +的电子转移机理相符,化学证据表明该方法优于包含碳正离子1 H +的另一种亲电子机理。