One-pot synthesis of chromeno[2,3-<i>b</i>]isoindolo[1,2-<i>e</i>]pyrrole-12,13-dione derivatives by sequential reaction of ninhydrin, 2-aminochromen-4-ones and arylamines
作者:Pritam Biswas、Jaydip Ghosh、Chandrakanta Bandyopadhyay
DOI:10.1080/00397911.2016.1170147
日期:2016.5.2
ABSTRACT Stirring an equimolar mixture of ninhydrin 1 and 2-aminochromen-4-ones 2 in CH3COOH at room temperature produced 6a,11a-dihydroxy-6H-chromeno[2,3-b]indeno[2,1-d]pyrrole-11,12(6aH,11aH)-diones 3, which on heating with aromatic amines 6 in acetic acid produced 11b-hydroxy-7-N-arylimino-6H-chromeno[2,3-b]isoindolo[1,2-e]pyrrole-12,13(11bH)-diones 7. GRAPHICAL ABSTRACT
摘要 在室温下在 CH3COOH 中搅拌茚三酮 1 和 2-aminochromen-4-ones 2 的等摩尔混合物产生 6a,11a-dihydroxy-6H-chromeno[2,3-b]indeno[2,1-d]pyrrole-11 ,12(6aH,11aH)-二酮 3,与芳香胺 6 在乙酸中加热生成 11b-羟基-7-N-芳基亚氨基-6H-色基[2,3-b]异吲哚并[1,2-e] pyrrole-12,13(11bH)-diones 7. 图形摘要