65171-03-1

Upstream product

• 15930-53-7 6-bromo-3,4-methylenedioxybenzaldehyde 
• 65170-98-1 (iodo-2 trimethoxy-3,4,5 benzyl) succinate de dimethyle 
• 119138-93-1 (+/-)-4-(3,4,5-trimethoxyphenyl)-3-methoxycarbonylbutanoic acid 
• 65171-07-5 trimethoxy-3,4,5 benzylsuccinate de dimethyle 
• 86-81-7 3,4,5-trimethoxy-benzaldehyde 
• 84736-30-1 (trimethoxy-3,4,5 benzylidene) α-hemisuccinate de methyle 
• 35274-53-4 2-bromo-3,4,5-tri-methoxybenzaldehyde 

Downstream Products

• 65171-08-6 cyano-2' (bis-methoxycarbonyl-2,3 propyl-1)-6 methylenedioxy-4',5' trimethoxy-2,3,4 biphenyle 

Relevant academic research and scientific papers

SYNTHESES TOTALES ET ETUDES DE LIGNANES BIOLOGIQUEMENT ACTIFS-I. APPLICATION DE LA REACTION D'ULLMANN A LA SYNTHESE DE BIARYLES PRECURSEURS DE LIGNANES BISBENZOCYCLOOCTADIENES

Several biaryls bearing various substituents on both rings were synthesized in a preparativ fashion, and in yields up to 88percent by a technical improvement on the classical Ullmann reaction.All these biaryls bear reactive functional groups (i.e. formyl, methoxycarbonyl, dimethoxycarbonylpropyl and butanolidylmethyl) in both the o and o' positions.The biaryls 9, 13, 21 and 26-33 are plausible synthons for bisbenzocyclooctadiene lignans such as schizandrin and steganacin.