Oxygenation of 4-(N-alkylimino)methyl-2,6-di--butylphenols mediated by Co(II)-Schiff base complex
作者:A. Nishinaga、T. Shimizu、T. Matsuura
DOI:10.1016/0040-4039(80)88076-2
日期:1980.1
4-(N-Alkylimino)methyl-2,6-di--butylphenols (), Schiff bases of 3,5-di--butyl-4-hydroxybenzaldehyde can be oxygenated in the presence of Co(Salpr), a five coordinate Co(II)-Schiff base complex to give N-alkyl-3--butyl-5-formyl-2-hydroxy-2-pivaloyl-1,2-dihydropyridines ( as the main product together with 3-formyl-2,5-di--butyl-2,4-cyclopentadienone () and 2,6-di--butyl-4-formyl-6-hydroxy-4,5-epoxy-2-cyclohexenone
3,5-二-丁基-4-羟基苯甲醛的席夫碱的4-(N-烷基烷基)甲基-2,6-二-丁基酚()可以在五配位Co(Salpr)存在下被氧化Co(II)-席夫碱配合物生成N-烷基-3-丁基-甲酰基-2-羟基-2-新戊酰基-1,2-二氢吡啶(作为主要产物与3-甲酰基-2,5 -二-二丁基-2,4-环戊二烯酮()和2,6-二-丁基-4-甲酰基-6-羟基-4,5-环氧-2-环己烯酮()这些产品是由于将双氧引入的邻位。