Synthesis of 3,4-Disubstituted Isoquinolines via Palladium-Catalyzed Cross-Coupling of o-(1-Alkynyl)benzaldimines and Organic Halides
摘要:
[GRAPHICS]3,4-Disubstituted isoquinolines have been prepared in good yields by the palladium-catalyzed cross-coupling of N-tert-butyl-o-(1-alkynyl)-benzaldimines with aryl, allylic, and alkynyl halides.
Synthesis of 3,4-Disubstituted Isoquinolines via Palladium-Catalyzed Cross-Coupling of 2-(1-Alkynyl)benzaldimines and Organic Halides
作者:Guangxiu Dai、Richard C. Larock
DOI:10.1021/jo026294j
日期:2003.2.1
The palladium-catalyzed cross-coupling of readily available N-tert-butyl-2-(1-alkynyl)benzaldimines and aryl, allylic, benzylic, alkynyl halides, as well as a vinylic halide, provides a valuable new route to 3,4-disubstituted isoquinolines with aryl, allylic, benzylic, 1-alkynyl, and vinylic substituents, respectively, in the 4-position. The reaction appears to require an aryl group on the end of the