作者:Qian Yu、Donglin Zhou、Yaoyue Liu、Xuejin Huang、Chunlan Song、Junjun Ma、Jiakun Li
DOI:10.1021/acs.orglett.2c03741
日期:2023.1.13
demonstrate an efficient method for the decarboxylative hydroxylation of carboxylic acids with silver(I) as the catalyst and cerium ammonium nitrate as the oxidant and its utility in chemoselective late-stage functionalization of natural products and drug molecules. The chemoselectivity of this protocol arises from a benzylic nitrate intermediate that retards further oxidation and is hydrolyzed to the
在此,我们展示了一种以银(I)为催化剂,硝酸铈铵为氧化剂的羧酸脱羧羟基化的有效方法,及其在天然产物和药物分子化学选择性后期功能化中的应用。该协议的化学选择性来自一种苄基硝酸盐中间体,它可以阻止进一步氧化并水解成最终的苄基醇产品。机理研究表明,羧酸银的容易氧化提供银(II)物质作为负责脱羧的中间氧化剂。