中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 5-hydroxy-1,3-dimethyl-2-thioxoimidazolidin-4-one | 916068-42-3 | C5H8N2O2S | 160.197 |
The 1,3-dialkyl-5-hydroxy-2-thioxoimidazolidin-4-ones 8 (R = Me, Et, iPr) were obtained from the corresponding thiourea and glyoxylic acid monohydrate in very good yield. Their reactions with chlorotrimethylsilane in the presence of triethylamine gave the 1,3-dialkyl-5-trimethylsiloxy-2-thioxoimidazolidin- 4-ones 9. NMR and crystal structure data of 1,3-diisopropyl-5-hydroxy-4-thioxoimidazolidin-4-one (8c) have confirmed the acyloin-type structure of the above mentioned compounds.