25328-77-2

Upstream product

• 61418-15-3 methyl (Z)-α-<3-methoxy-5-oxo-4-(3,4,5-trimethoxyphenyl)-2,5-dihydrofuran-2-ylidene>(4-methoxyphenyl)acetone 
• 23786-14-3 4-methoxy-phenyl acetic acid methyl ester 
• 32766-61-3 4-methoxyphenylglyoxylate methyl ester 
• 104206-29-3 methyl α-<2-hydroxy-3-methoxy-5-oxo-4-(3,4,5-trimethoxyphenyl)-2,5-dihydrofuran-2-yl>-4-methoxyphenylacetate 
• 61418-13-1 4-methoxy-3-(3,4,5-trimethoxy-phenyl)-5H-furan-2-one 
• 61418-12-0 3-methoxy-4-(3,4,5-trimethoxyphenyl)maleic anhydride 

Relevant academic research and scientific papers

New Syntheses of Pulvinic Acids via Reformatsky-type Reactions with Aryl methoxymaleic Anhydrides

The reaction of zinc enolates, viz (13), derived from arylacetates with 2-aryl-3-methoxymaleic anhydrides gives β-hydroxy ester intermediates viz(17) which can be dehydrated to Z- and E-isomers of permethylated pulvinic acids.Thus, the intermediate (17) d

A NEW SYNTHESIS OF PULVINIC ACIDS.

Reaction of zinc enolates e.g. (6) derived from arylacetates with 2-aryl-3-methoxymaleic anhydrides e.g. (3) gives intermediates viz (8) which can be dehydrated to Z-and E-isomers of permethylated pulvinic acids; treatment of the latter with trimethylsily