Synthesis of Pyrimidine-Annelated Heterocycles: Regioselective Synthesis of 1,3,6-Trialkyl Thieno[3,2-<i>d</i>]-Pyrimidine-2,4-Diones
作者:K. C. Majumdar、N. K. Jana
DOI:10.1080/00397910008087036
日期:2000.11
Abstract Thermal [3,3] sigmatropic rearrangement of a number of 1,3-dimethyl-5-(prop-2-ynylthio)uracils (4a-j) afforded the title compounds 5a-j in 60--82% yields.