Vitamins and antivitamins K: tautomerism of dicoumarol
作者:I. Chmielewska、J. Cieślak
DOI:10.1016/0040-4020(58)88012-6
日期:1958.1
Two isomeric dimethyl ethers of dicoumarol and derivatives substituted in the methylene group [formulae (XX) and (XXI)] were obtained. This result proves the tautomerism of dicoumarol and suggests for it the coumarin-chromone structure (XXIIa).