1,2-Disubstituted Hexahydro-1H-benzo[d]imidazoles: Synthesis, Characterization, and Stability
作者:Filip Bureš、Jiří Tydlitát、Jiří Kulhánek、Aleš Růžička
DOI:10.1055/s-0030-1258256
日期:2010.11
Starting from commercially available (hetero)aromatic nitriles and (1R,2R)-cyclohexane-1,2-diamine, nine NH-imidazolines (hexahydro-1H-benzo[d]imidazoles) were synthesized in good yields. The molecular structures of three imidazolines were confirmed by X-ray analysis. N-Benzylation afforded some of the desired N-benzylimidazolines, but was incompatible with imidazolines that possessed strong electron-accepting
从市售的(杂)芳族腈和(1 R,2 R)-环己烷-1,2-二胺开始,以高收率合成了九种NH-咪唑啉(六氢-1 H-苯并[ d ]咪唑)。通过X射线分析证实了三种咪唑啉的分子结构。N-苄基化提供了一些所需的N-苄基咪唑啉,但与在C2具有强电子接受杂芳族基团的咪唑啉不相容。在后一种情况下,产物在柱色谱法中分解形成N,N'-二取代的环己烷-1,2-二胺。 杂环-咪唑啉-手性池- N的-苄基-稳定性