作者:D. Billeret、D. Blondeau、H. Sliwa
DOI:10.1002/jhet.5570300316
日期:1993.5
2-Formyl-3-hydroxypyridine and its 6-methyl derivative have been condensed with ethoxycarbonylmethyl-enetriphenylphosphorane and alkyl derivatives to afford 5-azacoumarins substituted in the second case by an alkyl group at 3-position by two different ways according to the used phosphorane.
根据所用的磷烷,将2-甲酰基-3-羟基吡啶及其6-甲基衍生物与乙氧基羰基甲基-烯三苯基磷烷和烷基衍生物缩合,得到5-氮杂香豆素,在第二种情况下被3-位烷基以两种不同方式取代为3-氮杂香豆素。 。