182572-54-9

Upstream product

• 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 
• 73119-35-4 2,3-bis(3,4-dimethoxybenzylidene)butanedioic acid 
• 74-96-4 ethyl bromide 
• 182572-52-7 (Z)-2,3-Bis-(3,4-dimethoxy-benzyl)-but-2-enedioic acid diethyl ester 

Downstream Products

• 93578-48-4 optically inactive 2,3-bis-(3,4-dimethoxy-benzyl)-butanediol-(1,4) 

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