103122-82-3

Upstream product

• 93376-04-6 (+/-)-Prestegane B 
• 145438-68-2 E-2-(3-Benzyloxy-4-methoxybenzylidene)butanedioic acid 1-methyl ester 
• 6346-05-0 3-benzyloxy-4-methoxybenzaldehyde 
• 111959-12-7 4-(3-benzoxy-4-methoxybenzyl)-4,5-dihydro-2(3H)-furanone 
• 111959-14-9 4-(3-benzoxy-4-methoxybenzylidene)-4,5-dihydro-2(3H)-furanone 
• 140161-07-5 4-(3-hydroxy-4-methoxybenzyl)-4,5-dihydro-2(3H)-furanone 

Relevant academic research and scientific papers

Ruthenium Dioxide in Fluoro Acid Medium: II. Application to the Formation of Steganes Skeleton by Oxidative Phenolic Coupling

Ruthenium (IV) dioxide dihydrate in fluoro acidic medium was found to be a very efficient agent for the oxidative coupling of the phenolic lignans (+/-)-presteganes A and B.Different attempts to oxidise the diphenolic dibenzylbutanolide (+/-)-HMPF were also carried out, but were unsuccessful.Likely explanation for these failures are given.