Combination of Metal-Catalyzed Cycloisomerizations and Biocatalysis in Aqueous Media: Asymmetric Construction of Chiral Alcohols, Lactones, and γ-Hydroxy-Carbonyl Compounds
作者:María J. Rodríguez-Álvarez、Nicolás Ríos-Lombardía、Sören Schumacher、David Pérez-Iglesias、Francisco Morís、Victorio Cadierno、Joaquín García-Álvarez、Javier González-Sabín
DOI:10.1021/acscatal.7b02183
日期:2017.11.3
The combination of the metal-catalyzed cycloisomerization of alkynes containing a tethered nucleophile as substituent in aqueous media (followed by the spontaneous hydrolysis, hydroalkoxylation, or aminolysis of the transiently formed five-membered heterocycles) with the subsequent enantioselective ketone bioreduction (mediated by KREDs) has been achieved. The overall transformations, which formally
在水性介质中金属链催化的含链状亲核试剂作为取代基的炔烃的环异构化(随后是瞬时形成的五元杂环的自发水解,加氢烷氧基化或氨解)与随后的对映选择性酮生物还原(由KRED介导)已经实现。正式涉及三步一锅反应的整个转化过程提供了各种对映纯有价值的分子(例如1,4-二醇,内酯和γ-羟基羰基化合物(羧酸,酯和酰胺) )具有较高的转化率和对映选择性,并且在温和的反应条件下,公开了炔烃在水中金属催化的环异构化和酶催化的集成化概念。