Construction of highly antiaromatic boroles

• 来源期刊: 科学通报（英文版）
• 年，卷（期）: 2017,（13）
• 页码范围: 899-900
• 页数: 2页
• 语种: 英文

摘要

Boroles are five-membered,unsaturated heterocycles with an antiaromatic 4π-electron BC4 ring.According to Breslow's extension of the Hückel rule,the intrinsic antiaromaticity can be attributed to the unfavorable π-electron delocalization of the BC4 core,in which a vacant p-orbital on boron mediates the conjugation of four ring π-electrons.