Studies on Seven-Membered Heterocyclic Compounds Containing Nitrogen. XI. The Schmidt Reaction of 1-Benzyl-1-azacycloheptan-4-one, Menthone, and 2-Methyl-4,5,6,7-tetrahydrobenzo[<i>b</i>]thiazol-7-one
作者:Yoshifumi Sakakida、Anthonius Sina Kumanireng、Heizan Kawamoto、Akira Yokoo
DOI:10.1246/bcsj.44.478
日期:1971.2
The Schmidt reaction of 1-benzyl-1-azacycloheptan-4-one afforded a mixture of 1-benzyl-1,4-diazacyclooctan-5-one (IV) and a tetrazole derivative (V). The treatment of menthone (VIII) was found to give a lactam (IX), plus a tetrazole derivative (X) as a minor product. 2-Methyl-4,5,6,7-tetrahydrobenzo[b]thiazol-7-one (XII) was subjected to the Schmidt reaction to give a lactam XIIIa; it did not afford
1-benzyl-1-azacycloheptan-4-one 的 Schmidt 反应得到 1-benzyl-1,4-diazacyclooctan-5-one (IV) 和四唑衍生物 (V) 的混合物。发现薄荷酮(VIII)的处理产生内酰胺(IX),加上作为次要产物的四唑衍生物(X)。2-甲基-4,5,6,7-四氢苯并[b]噻唑-7-酮(XII)进行施密特反应得到内酰胺XIIIa;它没有提供四唑衍生物。这些产物的结构是根据核磁共振谱确定的。