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摘要
A convenient and efficient three-step synthesis of 4,6-dimethyl-2-(methylsulfonyl) pyrimidine can be achieved by cyclocondensation of acetylacetone and thiourea in the presence of hydrochloric acid to yield 4,6-dimethyl-1-mercaptopyrimidine, methylation with dimethyl carbonate and tetrabutylammonium bromide to give 4,6-dimethyl-2-methyl thiopyrimidine, and oxidation with hydrogen peroxide, sodium tungstate and tetrabutylammonium bromide to afford the title compound in an overall yield of 75%.
- 出版日期2013-12
- 单位常州大学
