Synthesis some of Pyrazines and oxazoles

Abstract

Abstract Decaboxylative Transamination of the α-amino acids glycine , alanine and tyrosine in the presence of the symmetrical and asymmetrical benzoins [ 4,4´ - di methyl benzoin , 4,4´ - di chloro benzoin and 4- amino benzoin led to the formation of oxazoles ,tetra –substituted pyrazine and the corresponding benzils.