silver‐catalyzed chemoselective [4+2] annulation of aryl and heteroaryl isocyanides with α‐substituted isocyanoacetamides was developed for the facile and efficient synthesis of 2‐aminoquinolones, naphthyridines, and phenanthrolines. A mechanism for this multistep domino reaction is proposed on the basis of a 13C‐labeling experiment, according to which an unprecedented chemoselective heterodimerization
Specified phenylalanine derivatives and analogues thereof have an antagonistic activity to &agr;4 integrin. They are used as therapeutic agents for various diseases concerning &agr;4 integrin.
1
Three-component reaction of ketals, isonitriles, and trimethylsilyl azide
作者:Nikita E. Golantsov、Hung M. Nguyen、Aleksey V. Varlamov、Aleksander V. Aksenov、Leonid G. Voskressensky
DOI:10.1007/s10593-017-2073-1
日期:2017.4
It was demonstrated that a ZnCl2-catalyzed three-component reaction of ketals, isonitriles, and trimethylsilylazide led to 1,5-disubstituted tetrazoles in moderate to high yields.
Synthesis of Densely Functionalized Pyrimidouracils by Nickel(II)-Catalyzed Isocyanide Insertion
作者:Jurriën W. Collet、Bénédicte Morel、Hung-Chien Lin、Thomas R. Roose、Pieter Mampuys、Romano V. A. Orru、Eelco Ruijter、Bert U. W. Maes
DOI:10.1021/acs.orglett.9b04387
日期:2020.2.7
nickel-catalyzed oxidative isocyanideinsertion/C-H amination by reaction of readily available N-uracil-amidines with isocyanides affording polysubstituted pyrimidouracils has been reported. The reaction proceeds in moderate to quantitative yield, under mild conditions (i.e., green solvent, air atmosphere, moderate temperature). The broad range of structurally diverse isocyanides and N-uracil-amidines that