Reaction of N-Methyl-hydrazones as Azaenamines with Quinones
作者:Heiko Buff、Uwe Kuckländer
DOI:10.1016/s0040-4020(00)00185-x
日期:2000.7
1,4-Naphthoquinone derivatives reacted with N,N-disubstituted hydrazones to give C adducts, whereas N-monoalkylhydrazones yielded N adducts which underwent ring closure to benzindazole-4,9-diones. Michael addition with methoxycarbonylbenzoquinone led to open chain mono- and disubstituted N adducts or phthalazin-1-one derivatives, depending on the hydrazone. N Adducts obtained from dimethylbenzoquinone