21314-09-0Relevant articles and documents
Phosphorus Pentoxide in Organic Synthesis. XXXV. Synthesis of Thiazolopyrimidin-7-amines and Purine-6-thiones from 5-Acylamino-4-thiazolecarboxamides
Andersen, Knud Erik,Hammad, Mahmoud,Hilmy, Khalid M. H.,Pedersen, Erik B.
, p. 708 - 711 (2007/10/02)
5-Acylamino-4-thiazolecarboxamides (1) have been converted into a series of N-aryl-7-thiazolopyrimidinamines (3) and 9-aryl-1,9-dihydro-6H-purine-6-thiones (4) by heating in a mixture of phosphorus pentoxide, triethylamine hydrochloride and an anil