Synthetic methods. 35. Nitrile additions to C,N-diacylimines. Formation of 4-amidooxazoles
作者:Bilha Fischer、Alfred Hassner
DOI:10.1021/jo00305a015
日期:1990.8
FISCHER, BILHA;HASSNER, ALFRED, J. ORG. CHEM., 55,(1990) N8, C. 5225-5229
作者:FISCHER, BILHA、HASSNER, ALFRED
DOI:——
日期:——
4,5- and 2,5-additions to oxazoles
作者:Alfred Hassner、Bilha Fischer
DOI:10.1016/s0040-4020(01)85135-8
日期:1989.1
An investigation of the reaction of variously substituted oxazoles with Br2 in methanol revealed the formation of non-aromatic addition products. In general the presence of an aromatic substituent at the 4-position of oxazoles or the presence of a 4-methyl group if the 2-substituent is also aliphatic favors formation of 2,5-dimethoxy-3-oxazolines , while an aromatic substituent at the 2-position favors