首页>
外国专利>
METHOD FOR PRODUCING 5-arylidene hydantoins AND -ALKYLIDENSUBSTITUIERTEN
METHOD FOR PRODUCING 5-arylidene hydantoins AND -ALKYLIDENSUBSTITUIERTEN
展开▼
机译:生产5-亚芳基乙内酰脲和-烷基取代基的方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
There is disclosed a process for the preparation of C-5-ethylenically unsaturated hydantoin derivatives which are useful as intermediates in the synthesis of 1,3-dihydro-2H-imidazo¢4,5-b!quinolin-2-ones. The process comprises coupling an aliphatic or aromatic aldehyde or ketone or an alpha-dicarbonyl compound with a dialkyl 5-phosphonate hydantoin.
展开▼