Chiral Triazoles in Anion-Binding Catalysis: New Entry to Enantioselective Reissert-Type Reactions
作者:Mercedes Zurro、Sören Asmus、Julia Bamberger、Stephan Beckendorf、Olga García Mancheño
DOI:10.1002/chem.201504094
日期:2016.3.7
Easily accessible and tunable chiral triazoles have been introduced as a novel class of C−H bond‐based H‐donors for anion‐binding organocatalysis. They have proven to be effective catalysts for the dearomatization reaction of different N‐heteroarenes. Although this dearomatization approach represents a powerful strategy to build chiral heterocycles, to date only a few catalytic methods to this end
易于获得和可调性的手性三唑已被引入作为一类基于C H键的H型供体,用于阴离子结合的有机催化。事实证明,它们是不同N-杂芳烃脱芳香化反应的有效催化剂。尽管这种脱芳香化方法代表了构建手性杂环的强大策略,但迄今为止,仅有少数几种催化方法可用于此目的。在这项工作中,实现了使用许多结构上不同的手性三唑作为阴离子结合催化剂的异喹啉衍生物的有机催化对映选择性Reissert型脱芳香化反应。本文介绍的方法用于合成许多对映体选择性高达86:14的手性1,2-二氢异喹啉底物