化学
废止
硫
苯胺
吡啶
亚甲基
烷基化
有机化学
药物化学
光化学
催化作用
盐(化学)
作者
Pallaba Ganjan Dalai,Niranjan Panda
标识
DOI:10.1002/adsc.202200886
摘要
Abstract Benzannulation and N ‐annulation of β‐ketoenamines by the in‐situ generated methyl(methylene)sulfonium ion from the reaction of dimethyl sulfoxide (DMSO) and 1,2‐dibromoethane (DBE) was achieved. The β‐ketoenamines underwent N‐annulation to pyridine derivatives, while the N ‐alkylated enamines were benzannulated to afford substituted anilines. The utility of the intermediate methyl(methylene)sulfonium ion was further extended for synthesizing methylene‐bridged bis‐1,3‐dicarbonyl compounds. magnified image
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