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.
An approach to 1-phosphorylated isoquinolines through silver(I)-catalyzed tandem reaction involving C–N and C–P bond formation
作者:Xianbo Wang、Zhiyong Wang
DOI:10.1016/j.tet.2014.06.060
日期:2014.9
A novel silver-catalyzed tandem reaction of 2-alkynylbenzaldoximes with H-phosphinate esters, and H-phosphine oxides has been developed, providing a general and powerful tool for the synthesis of various 1-phosphorylated isoquinolins in moderate to excellent yield. This reaction proceeded smoothly to construct C–N and C–P bonds in one-pot with good functional group tolerance under mild conditions.