405201-33-4

Upstream product

• 29938-01-0 2,3-diphenyl-benzo[b]thiophen-7-ol 
• 141-82-2 malonic acid 
• 1484-50-0 desyl bromide 
• 7217-59-6 2-Methoxybenzenethiol 
• 29945-61-7 2-(o-Methoxyphenylthio)-2-phenylacetophenon 

Downstream Products

• 1092362-90-7 4-hydroxy-3-(1-phenyl-2-acetylethyl)-7,8-diphenyl-2H-thieno(3,2-h)chromen-2-one 
• 1092362-92-9 4-hydroxy-3-(1-(p-hydroxyphenyl)-2-acetylethyl)-7,8-diphenyl-2H-thieno(3,2-h)chromen-2-one 

Relevant academic research and scientific papers

Facile synthesis of substituted 4-hydroxy coumarinobenzothiophenes

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).