Heterocyclic Communications p. 271 - 276 (2001)
Update date:2022-07-31
Topics:
Kumar, P. Naveen
Prasanna
Chandramouli
The Lewis acid in dichloromethane mediated cyclization and demethylation of substituted 2-aryl-2-((2-methoxy phenvl)thio)acetophenones 3a-f at room temperature converting into 7-hydroxy-2,3-diaryl substituted benzothiophenes 4a-f.These were condenced with substituted malonic acids by the same reagent to produce the substituted 4-hydroxy coumarino benzothiophenes (6a-f & 7a-f).
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