Copper-Catalyzed Direct Transformation of Secondary Allylic and Benzylic Alcohols into Azides and Amides: An Efficient Utility of Azide as a Nitrogen Source
作者:Balaji V. Rokade、Karthik Gadde、Kandikere Ramaiah Prabhu
DOI:10.1002/ejoc.201500010
日期:2015.4
synthesis of amides has been explored by using secondary alcohols, Cu(ClO4)2·6H2O as a catalyst, and trimethylsilyl azide (TMSN3) as a nitrogen source in the presence of 2,3-dichloro-5,6-dicyano-p-benzoquinone (DDQ) at ambient temperature. This method has been successfully adapted to the preparation of azides directly from their corresponding alcohols and offers excellent chemoselectivity in the formation
在2,3-二氯-5存在下,以仲醇、Cu(ClO4)2·6H2O为催化剂,以叠氮化三甲基甲硅烷(TMSN3)为氮源,探索了一种温和、简便的酰胺合成方法。 ,6-二氰基对苯醌 (DDQ) 在环境温度下。该方法已成功地适用于直接从其相应的醇制备叠氮化物,并在 ω-卤代叠氮化物的形成和烯丙醇在苄醇部分存在下的叠氮化中提供出色的化学选择性。此外,该策略为合成可作为 β-氨基酸前体的叠氮化物提供了机会。