Studies on the oxidation of N-substituted-dibenz(b,f)azepines. I. Oxidation with m-chloroperbenzoic acid.
作者:TOMIO OHTA、NAOKI MIYATA、MASAAKI HIROBE
DOI:10.1248/cpb.29.1221
日期:——
Oxidation of various N-substituted-dibenz [b, f] azepines with m-chloroperbenzoic acid (m-CPBA) was examined. Oxidation of N-acyldibenz [b, f] azepines (If-k) gave the 10, 11-oxide (XVIIf-k). Oxidation of N-alkyldibenz [b, f] azepines (Ia-c) gave the diphenylamine (IIa-c) and 9-acridone (IIIa-c). Oxidation of N-methyldibenz [b, f]-azepine (Id) gave the N-oxide (IX) as a main product. In the case of oxidation of N-phenyldibenz [b, f] azepine (Ie), hydroxylation of the phenyl nucleus occurred to give N-(o-hydroxy) phenyldibenz [b, f] azepine (XII). In addition, further oxidation of XII proceeded to give diphenylamine (IIe). The rates of oxidation of N-substituted-dibenz [b, f] azepines (Ia-c) having an N-alkyl group were faster than those of If-k (having an N-acyl group).
使用对氯过苯甲酸(m-CPBA)对各种N取代的双苯并[b, f]氨基杂环化合物进行了氧化研究。对N-酰基双苯并[b, f]氨基杂环化合物(If-k)的氧化生成了10, 11-氧化物(XVIIf-k)。对N-烷基双苯并[b, f]氨基杂环化合物(Ia-c)的氧化生成了二苯胺(IIa-c)和9-阿克里酮(IIIa-c)。对N-甲基双苯并[b, f]-氨基杂环化合物(Id)的氧化主要生成了N-氧化物(IX)。在N-苯基双苯并[b, f]氨基杂环化合物(Ie)的氧化中,苯核发生了羟基化,生成了N-(o-羟基)苯基双苯并[b, f]氨基杂环化合物(XII)。此外,XII的进一步氧化生成了二苯胺(IIe)。具有N-烷基取代基的N取代双苯并[b, f]氨基杂环化合物(Ia-c)的氧化速率比具有N-酰基取代基的If-k更快。