Synthesis of 3-(Diarylmethylene)oxindoles via a Palladium-Catalyzed One-Pot Reaction: Sonogashira-Heck-Suzuki-Miyaura Combined Reaction
摘要:
A novel one-pot reaction for the synthesis of 3-(diarylmethylene)oxindoles is described. The reaction involves the successive combination of three palladium-catalyzed reactions (Sonogashira, Heck, and Suzuki-Miyaura reactions). This method enables the rapid synthesis of various 3-(diarylmethylene)oxindoles from simple propiolamides. The addition of silver salts dramatically enhanced the E/Z stereoselectivity of the reaction.
Palladium Nanoparticle-Catalyzed Stereoselective Domino Synthesis of All-Carbon Tetrasubstituted Olefin Containing Oxindoles via Carbopalladation/C–H Activation
作者:Naziya Parveen、Govindasamy Sekar
DOI:10.1021/acs.joc.0c00915
日期:2020.8.21
catalyzed single-step, stereoselective domino synthesis of symmetrically and unsymmetrically all-carbon tetrasubstituted olefin containing oxindoles from readily accessible anilides has been developed. The Pd-BNP catalyst showed a wide range of functional group tolerance that enabled building a library of heteroaromatics. This reusable Pd catalyst reflected its utility in the synthesis of biologically important