Lewis acid-catalyzed reactions of N′-(2-alkynylbenzylidene)hydrazides with diethyl phosphite
摘要:
Lewis acid catalyst-tuned reactions of N'-(2-alkynylbenzylidene)hydrazides with diethyl phosphite are described. Isoquinolin-1-ylphosphonate is generated when copper triflate is utilized as catalyst, while 2-amino-1,2-dihydroisoquinolin-1-ylphosphonate is obtained in the presence of palladium acetate. (C) 2009 Elsevier Ltd. All rights reserved.