The reductive coupling of 2-cyanopyrroles: A study pertaining to the mechanism of formation of porphocyanines
作者:Christian Brückner、Lily Y. Xie、David Dolphin
DOI:10.1016/s0040-4020(97)10424-0
日期:1998.3
ethyl)imine when treated with lithium aluminum hydride (LAH), followed by a mild work-up. A plausible mechanism of this reductive coupling was inferred from a series of experiments, including 27Al-NMR, deuteration experiments, and the reduction of variously substituted cyanopyrroles. The mechanism, a metal chelate mediated dimerization, may be the key to understanding porphocyanine synthesis via the
当用氢化铝锂(LAH)处理后,发现2-氰基吡咯形成(2-吡咯基亚甲基)-(2-吡咯基甲基)亚胺,然后进行轻度的后处理。从一系列实验中推断出这种还原偶联的合理机理,包括27 Al-NMR,氘化实验以及各种取代的氰基吡咯的还原。该机制是金属螯合剂介导的二聚化,可能是通过LAH还原1,9-二氰基二吡咯甲烷来了解卟啉花青合成的关键。