163732-96-5

Upstream product

• 73119-34-3 2,3-Bis-[1-(3,4-dimethoxy-phenyl)-meth-(E)-ylidene]-succinic acid dimethyl ester 
• 289622-16-8 diethyl 2-(3,4-dimethoxybenzylidene)succinate 
• 126274-95-1 2-(3,4-dimethoxybenzylidene)butanedioic acid monoethyl ester 
• 163732-93-2 2,3-bis(3,4-dimethoxybenzyl)maleic anhydride 
• 91231-60-6 2,3-bis(3,4-dimethoxybenzylidene)butanedioic acid anhydride 
• 120-14-9 3,4-dimethoxy-benzaldehyde 
• 163732-94-3 meso-2,3-diveratryl-succinic acid dimethyl ester 
• 126965-32-0 meso-1,2-bis[(3,4-dimethoxyphenyl)methyl]ethane-1,2-dicarboxylic acid 
• 73119-35-4 2,3-bis(3,4-dimethoxybenzylidene)butanedioic acid 
• 3886-69-9 (R)-1-phenyl-ethyl-amine 
• 163732-95-4 meso-2,3-bis(3,4-dimethoxybenzyl)butanedioic anhydride 

Downstream Products

• 81446-31-3 (+)-O-Methyl-isoarctigenin 
• 163732-97-6 (2S,3R)-2-(3,4-Dimethoxy-benzyl)-4-(3,4-dimethoxy-phenyl)-3-hydroxymethyl-N-((R)-1-phenyl-ethyl)-butyramide 

Relevant academic research and scientific papers

Asymmetric synthesis of a lignan lactone from a meso anhydride

The synthesis of a meso-2,3-dibenzylbutanedioic acid anhydride is given. Reaction of this with (+)-α-methylbenzylamide proceeds diastereoselectively to give a butanedioic acid monoamide which is converted into an enantiomerically enriched cis-2,3-dibenzyl