A new synthesis of thiophenes and thiapyrans

VK Dikshit, BD Tilak

文献索引：Dikshit; Tilak Proceedings - Indian Academy of Sciences, Section A, 1951 , # 33 p. 78,82

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被引用次数: 3

摘要

Summary 8-Chloro-1-thionaphthol, prepared from peri-acid, was condensed with bromoacetaldehyde dimethyl acetal to give 8-chloro-1-naphthyl ω-dimethoxyethyl sulphide (IV). Ring-closure of (IV) gave 3′-chlorobenzo-(1′: 2′, 6: 7)-thionaphthene (V), which on dechlorination gave 6: 7-benzothionaphthene (II). The cyclization product from α-naphthyl ω- dimethoxyethyl sulphide (I) reported in the previous communication being different from (II ...