Atropisomeric Properties of <i>N</i>-Alkyl/Aryl 5<i>H</i>-Dibenz[<i>b</i>,<i>f</i>]azepines
作者:Ryoko Tanaka、Ayana Nabae、Koki Yamane、Kosho Makino、Hidetsugu Tabata、Tetsuta Oshitari、Hideaki Natsugari、Hideyo Takahashi
DOI:10.1248/cpb.c22-00265
日期:2022.8.1
properties of N-alkyl and N-aryl 4-substituted 5H-dibenz[b,f]azepines were investigated. The N-alkylation and N-arylation of 4-Cl or 4-Me substituted compounds was performed; however, none of the atropisomers produced were separated by chiral HPLC. Notably, we observed that the rotation of the four axes (ax. 1–4) in the 4-substituted 5H-dibenz[b,f]azepine structure is so rapid that N-alkylation or N-arylation
研究了N-烷基和N-芳基4-取代的5 H-二苯并[ b , f ]氮杂杂环庚烷的阻转异构性质。进行4-Cl或4-Me取代化合物的N-烷基化和N-芳基化;然而,所产生的阻转异构体均未通过手性 HPLC 分离。值得注意的是,我们观察到 4-取代的 5 H-二苯并[ b , f ] 氮杂环庚烷结构中的四个轴 (ax. 1-4) 的旋转是如此之快,以至于N-烷基化或N-芳基化不足以冻结它在室温下。此外,X 射线晶体结构N-芳基化合物13b和14a表明其结构中三苯胺部分的N原子表现出sp 2类性质。 全尺寸图像