93796-47-5

Upstream product

• 93796-46-4 (E)-5'-<α-methoxycarbonyl-(3,4-dibenzyloxybenzylidene)>cyclohexanespiro-2'-(1',3'-dioxolan)-4'-one 
• 5447-02-9 3,4-dibenzyloxybenzaldehyde 
• 58594-01-7 2-(3,4-bis(benzyloxy)phenyl)-1,3-dithiane 
• 93796-45-3 methyl 3,4-dibenzyloxyphenylglyoxylate 
• 93796-44-2 2-(3,4-dibenzyloxyphenyl)-2-methoxycarbonyl-1,3-dithiane 

Downstream Products

• 25287-88-1 [4-(3,4-dihydrophenyl)-3-hydroxy-5-oxo-5H-furan-2-ylidene](4-hydroxyphenyl)acetic acid 

Relevant academic research and scientific papers

Dioxolanones as Synthetic Intermediates. Part 3. Biomimetic Synthesis of Pulvinic Acids

The reaction of the phosphorane (16) with methyl arylglyoxylates gives 5-(α-methoxycarbonylarylidene)-2,2-pentamethylene-1,3-dioxolan-4-ones which have been treated with the lithium enolates of t-butyl phenylacetic esters to provide a biomimetic synthesis of pulvinic acids.By this method pulvinic acid (2), vulpinic acid (1), and the unsymmetrically substituted compounds, leprapinic acid (3), and xerocomic acid (4) have been prepared; the last named was obtained via an intermediate (28) in which the phenolic groups were protected as benzyl ethers.