作者:Slobodan Petrović、Vlatka E. Vajs、Aleksandar D. Nikolić、Nada D. Stojanović
DOI:10.1016/0022-2860(86)85154-7
日期:1986.3
Abstract The syntheses of a various N-methyl-N-substituted 2-phenylacetamides of the general formula PhCH 2 CON(CH 3 )R, wherein, R is ethyl, n-propyl, isopropyl and t-butyl group, were performed. The 1 H n.m.r. spectra of these unsymetrically N,N-disubstituted amides have been studied and the peaks have been assigned in each case to the two possible conformational isomers, arising from the lack of
摘要 合成了各种通式PhCH 2 CON(CH 3 )R的N-甲基-N-取代的2-苯基乙酰胺,其中R为乙基、正丙基、异丙基和叔丁基。已经研究了这些不对称 N,N-二取代酰胺的 1 H 核磁共振谱,并且在每种情况下将峰指定为两种可能的构象异构体,这是由于缺乏围绕 C(O)N 键的自由旋转。尽管顺式形式占主导地位,但顺式异构体的百分比随着其他氮取代基变得更大而增加。这些结果与我们之前对 N-单取代 2-苯基乙酰胺结构的研究一致。