Scholarlink

Abstract <p>A method for the synthesis of 7a,8-dihydrobenzo[5,6]chromeno[2,3-<i>b</i>]pyrrol-9(11<i>H</i>)-ones from β-methoxalyl-substituted 1<i>H</i>-benzo[<i>f</i>]chromenes and primary aliphatic amines in the presence of nitromethane has been developed. A possible reaction route is proposed that includes the Henry reaction, the aza-Michael reaction, intramolecular nucleophilic addition, and the retro-aza-Henry reaction as the main stages.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Synthesis of 7a,8-Dihydrobenzo[5,6]chromeno[2,3-b]pyrrol-9(11H)-ones

  • 期刊论文

  • 发表日期：

    2026年2月9日

查看全文
  • Vitaly A. Osyanin,
  • Oleg P. Demidov

摘要

Abstract

A method for the synthesis of 7a,8-dihydrobenzo[5,6]chromeno[2,3-b]pyrrol-9(11H)-ones from β-methoxalyl-substituted 1H-benzo[f]chromenes and primary aliphatic amines in the presence of nitromethane has been developed. A possible reaction route is proposed that includes the Henry reaction, the aza-Michael reaction, intramolecular nucleophilic addition, and the retro-aza-Henry reaction as the main stages.