作者:Lothar Hennig、Mario Alva-Astudillo、Gerhard Mann、Thomas Kappe
DOI:10.1007/bf00816851
日期:——
Treatment of substituted benzylidene anilines 1 a - f with cyclic CH-acidic compounds 2 a - m in ethanol at room temperature yields in additon/elimination reactions the corresponding arylidene derivatives 4 and the 2 : 1 adducts 5. The addition products 3, which are formed as intermediates, could not be isolated in any case. The donor/acceptor effect of the substituents on the benzylidene moiety influences to a significant extent the reactivity towards the azomethine carbon.