Acyl iodides in organic synthesis. Reactions with morpholine, piperidine, and N-hydrocarbylpiperidines
作者:M. G. Voronkov、I. P. Tsyrendorzhieva、V. I. Rakhlin
DOI:10.1134/s1070428010060047
日期:2010.6
Acyl iodides RCOI (R = Me, Ph) reacted with morpholine and piperidine to give the corresponding N-acyl derivatives and morpholine or piperidine hydroiodides. Reactions of acyl iodides with N-methyl- and N-ethylpiperidines involved cleavage of the exocyclic R-N bond with formation of N-acylpiperidine and alkyl iodide and were accompanied (to insignificant extent) by cleavage of the endocyclic N-C bond
酰基碘RCOI(R = Me,Ph)与吗啉和哌啶反应生成相应的N-酰基衍生物和吗啉或哌啶氢碘化物。与酰基碘化物的反应Ñ甲基和Ñ -ethylpiperidines与形成的环外RN键的裂解涉及Ñ -acylpiperidine和烷基碘和由内环NC键的切割伴随(至微不足道的程度),从而导致Ñ烷基- ñ - (5-碘戊)丙酰胺。在乙酰碘与N-苯基哌啶的反应中,主要过程是仅裂解环内NC键以生成N-(5-碘戊基)-N-苯基乙酰胺及其脱氢碘化产物,N-(戊-4-烯-1-基)-N-苯基乙酰胺。与苯甲酰碘的类似反应以不良产率得到N-(5-碘戊基)-N-苯基苯甲酰胺。