Palladium-Catalyzed Cyanation of Quinazoline-4-tosylates for Access to 4-CN-Functionalized Quinazolines
摘要:
A highly efficient palladium-catalyzed cyanation of quinazoline-4-tosylates is disclosed. The method is successfully developed for the direct access to various 4-CN-functionalized quinazolines, which are potentially useful as biologically and pharmaceutically active compounds. The reactions were performed under mild conditions using inexpensive copper(I) cyanide as cyano source in good to excellent yields and great functional group diversities.
Lewis Basic Salt-Promoted Organosilane Coupling Reactions with Aromatic Electrophiles
作者:Tyler W. Reidl、Jeffrey S. Bandar
DOI:10.1021/jacs.1c05764
日期:2021.8.11
Lewis basic saltspromote benzyltrimethylsilane coupling with (hetero)aryl nitriles, sulfones, and chlorides as a new route to 1,1-diarylalkanes. This method combines the substrate modularity and selectivity characteristic of cross-coupling with the practicality of a base-promoted protocol. In addition, a Lewis base strategy enables a complementary scope to existing methods, employs stable and easily