作者:Piin-Jye Harn、Chu-Chung Lin、Hsien-Jen Wu
DOI:10.1002/jccs.201000195
日期:2010.12
Oxidation of 3‐furfurylamines 3a‐e with bromine in acetone‐water solution gave N‐substituted 3‐formylpyrroles 4a‐e in good yields. A reaction mechanism via the Clauson‐Kaas reaction followed by the cis‐trans isomerization of the 2‐ene‐1,4‐diones 13 and 14 was proposed to account for the formation of the pyrroles 4a‐e.
在丙酮-水溶液中用溴氧化3-糠胺3a-e得到高收率的N-取代的3-甲酰基吡咯4a-e。提出了通过Clauson-Kaas反应的反应机理,然后通过2-烯-1,4-二酮13和14的顺反异构化来解释吡咯4a-e的形成。