2-Thiohydantoin derivatives are produced by heating a mixture of thiourea and an α-amino acid. The method described offers the advantages of simplicity, low cost, easy work-up and scalability.
On Formation of Thiohydantoins from Amino Acids under Acylation Conditions
作者:Samuel Reyes、Kevin Burgess
DOI:10.1021/jo052576i
日期:2006.3.1
[GRAPHICS]Reactions of glycine, alanine, and phenylalanine with acetic anhydride and ammonium thiocyanate give the 1-acetyl-2-C, thiohydantoins 2a-c. These results appear to contradict prior literature reports pertaining to this reaction.