The Green Synthesis of 2‐Pyrrolin‐5‐ones from Bio‐renewable Glyoxal, Diketones and Amines
作者:Aanuoluwapo O. Oyejobi、Dandan Gao、Jiahua Wang、Xiang‐Ying Tang、Long Wang
DOI:10.1002/ejoc.202400063
日期:2024.4.2
An efficient and environmentally benign method was developed for the synthesis of 2-pyrrolin-5-ones from dicarbonyl compounds, bio-renewable glyoxal, and amines. More than 25 new 2-pyrrolin-5-one compounds were synthesized in good to high yields under mild conditions.
An efficient method for the synthesis of multi-substituted pyrroles was developed using basic cyclization of readily accessible N-Boc-N-propargylenamines. Despite the basic conditions, cleavage of the N-Boc group occurred easily. The process was rapid and afforded N-H-pyrroles with wide functional group tolerance in high yields.