作者:Tatiana Golub、James Y. Becker
DOI:10.1016/j.electacta.2016.04.074
日期:2016.7
The anodic oxidation of three ‘cyclic amides’ of type N-acylazacycloalkanes [5- (I), 6- (II) and 7-membered (III) rings] has been studied in methanol under constant current electrolysis, at C anodes and in the presence of various supporting electrolytes, and different concentrations of substrates. Four major products were formed in good yields by all three substrates, namely N-acyl, α-azacycloalkenes
N-酰基杂氮杂环烷烃[5-(I),6-(II)和7-元(III)的三种“环状酰胺”的阳极氧化环]已在甲醇中恒流电解,C阳极,存在各种支持电解质和不同浓度底物的条件下进行了研究。所有三个底物均以高收率形成了四个主要产物,即N-酰基,α-氮杂环烯烃,N-酰基,α-甲氧基氮杂氮杂环烷,N-酰基,α-甲氧基,α'-氮杂环烯烃和N-酰基,α,α ′-二甲氧基氮杂环烷烃。发现产物之间的相对比率和选择性在很大程度上取决于所用电解质的性质,而在较小程度上取决于底物浓度。就环大小效应而言,发现氧化速率和电流效率(产率)的顺序为:I > II > III。当使用各种支持电解质时,后两者的表现也相似(但与I不同)。