Reactivity of 2-Methylene-1,3-dicarbonyl Compounds. 1,3-Dipolar Cycloaddition Reaction with Ethyl Diazoacetate.
作者:Masashige YAMAUCHI、Masahiko YAJIMA
DOI:10.1248/cpb.49.1638
日期:——
The reaction of 2-methylene-1,3-dicarbonyl compounds (1) with ethyl diazoacetate gave 4,5-dihydro-1H-pyrazole derivatives (2), which were stable for several months at room temperature in good yields.