作者:Chen, Yongdan、Deng, Tongtong、Zhu, Shuwei、Yin, Fumeng、Zhu, Hongjun
DOI:10.1016/j.tet.2024.134087
日期:——
divergent synthesis of chromones and chromanones from a common substrate via reductive coupling cyclization by switching hydrosilanes has been developed. Results of mechanistic studies revealed that under PhMeSiH conditions, the reaction initially undergone cyclization to form chromones , which can subsequently be reduced to yield chromanones . When the hydrosilane was switched to EtSiH, the reaction route
开发了一种使用AgOTf/[Si]H通过切换氢硅烷的还原偶联环化从共同底物高效且发散地合成色酮和色满酮的方法。机理研究结果表明,在PhMeSiH条件下,反应最初发生环化形成色酮,随后可被还原生成色酮。当氢硅烷换成EtSiH时,反应路线在色酮处停止,CC不能进一步还原。这种新颖、温和的方案具有广泛的官能团兼容性、高产品多样性以及在构建生物相关色酮或色满酮衍生物方面的实用性。