-Acylated α-aminonitriles and their conversion into 5-aminooxazole, 5(4)-oxazolone and 4(5)-imidazolone derivatives
作者:P. Verschave、J. Vekemans、G. Hoornaert
DOI:10.1016/0040-4020(84)80023-x
日期:1984.1
In contrast with the reaction of α-aminonitriles a, the corresponding -acylated α-aminonitriles b-f and oxalyl chloride do not yield pyrazinone derivatives, but 5-aminooxazoles - or 4(5)-imidazolones , the latter being converted in some cases into imidazo [2,1-]isoquinoline-2,5,6(3)-triones. Reactions of compounds b-f and ethyl chlorooxoacetate provide evidence for a 5(4)-iminooxazole intermediate