909103-97-5

Upstream product

• 554430-78-3 3-(2,4-dimethoxy-phenyl)-7-methoxy-4-methyl-chromen-2-one 
• 909103-94-2 4-but-3-enyl-3-(2,4-dimethoxy-phenyl)-7-methoxy-chromen-2-one 

Downstream Products

• 909103-98-6 4-(3-bromo-propyl)-3-(2,4-dimethoxy-phenyl)-7-methoxy-chromen-2-one 
• 909103-99-7 3-(2,4-dimethoxy-phenyl)-4-(3-hydroxy-propyl)-7-methoxy-chromen-2-one 

Relevant academic research and scientific papers

Synthesis of novel tetracyclic chromenes through carbanion chemistry of 4-methyl coumarins

Various substituents were introduced onto the methyl group in 4-methyl coumarins through lithiation, followed by reactions with a wide range of electrophiles. The presence of an alkoxy group on 6′-phenyl ring was found to be pivotal for the success of thi