Synthesis of 3-(2-Hydroxyaryl)-1-methyl-2-pyrazolin-5-ones from 4-Hydroxycoumarins and their Conversion to 2-Methyl-1-benzopyrano[4,3-c]pyrazol-3(2H)-one Derivatives
CHANTEGREL, B.;GEI, IN, SUZANNE, SYNTHESIS, BRD, 1985, N 5, 548-550
作者:CHANTEGREL, B.、GEI, IN, SUZANNE
DOI:——
日期:——
Synthesis of 3-(2-Hydroxyaryl)-1-methyl-2-pyrazolin-5-ones from 4-Hydroxycoumarins and their Conversion to 2-Methyl-1-benzopyrano[4,3-<i>c</i>]pyrazol-3(2<i>H</i>)-one Derivatives