An I2-promoted formal [3+2] cycloaddition for access to oxazoles has been demonstrated. This is the first example of a Lewis acid-promoted formal [3+2] cycloaddition of isocyanides with methyl ketones involves...
WHITE R. L., JR.; WESSELS F. L.; SCHWAN T. J.; ELLIS K. O., J. MED. CHEM., 30,(1987) N 2, 263-266
作者:WHITE R. L., JR.、 WESSELS F. L.、 SCHWAN T. J.、 ELLIS K. O.
DOI:——
日期:——
Silver‐Induced [3+2] Cycloaddition of Isocyanides with Acyl Chlorides: Regioselective Synthesis of 2,5‐Disubstituted Oxazoles
作者:Jian‐Quan Liu、Xuanyu Shen、Andrey Shatskiy、Enlong Zhou、Markus D. Kärkäs、Xiang‐Shan Wang
DOI:10.1002/cctc.201900965
日期:2019.9.5
A silver‐induced cycloaddition of isocyanides with acyl chlorides has been developed. This transition metal‐catalyzed strategy provides an effective and scalable approach for the formation of 2,5‐disubstituted oxazoles in good to high yields. The employed silver‐based MOF catalyst can be efficiently recycled without compromising the yield.
1-[[[5-(Substituted phenyl)-2-oxazolyl]methylene]amino]-2,4-imidazolidinediones, a new class of skeletal muscle relaxants
作者:R. L. White、F. L. Wessels、T. J. Schwan、K. O. Ellis
DOI:10.1021/jm00385a006
日期:1987.2
A series of 1-[[[5-(substitutedphenyl)-2-oxazolyl]methylene]amino]- 2,4-imidazolidinediones (6a-t) was synthesized, and the compounds were evaluated for direct skeletal muscle inhibition in the pithed rat gastrocnemius muscle preparation. The correctness of structural assignment of the new series was verified by alternate, unequivocal synthesis of one representative structure (6f). The phenyloxazoles