Dry reaction of indoles with carbonyl compounds on montmorillonite K10 clay: a mild, expedient synthesis of diindolylalkanes and vibrindole A
作者:Manas Chakrabarty、Nandita Ghosh、Ramkrishna Basak、Yoshihiro Harigaya
DOI:10.1016/s0040-4039(02)00682-2
日期:2002.5
Dry reaction of indoles 1a–c with aldehydes 2a–i, ketones 2j–o and an acetal 2p on M. K10 clay at room temperature furnished 3,3′-diindolylalkanes (DIAs: 3a–h, j–r). The novel formation of tris(3-indolyl)methane 4 from 2i through tandem reactions and of the DIAs 6 and 8 from 1d through Plancher rearrangements were also observed.
在室温下,吲哚1a – c与醛2a – i,酮2j – o和乙缩醛2p在M. K10粘土上的干反应可制得3,3'-二吲哚基烷烃(DIAs:3a – h,j – r)。还观察到了从2i通过串联反应形成的三(3-吲哚基)甲烷4和从1d通过Plancher重排形成的DIAs 6和DIAs 8。