81581-36-4

Upstream product

• 67560-61-6 meso-1,4-dioxo-1,4-diphenylbutane-2,3-dicarboxylic acid diethyl ester 
• 55919-47-6 ethyl 2-bromo-3-oxo-3-phenylpropionate 
• 4687-38-1 d,l-1,4-dioxo-1,4-diphenylbutane-2,3-dicarboxylic acid diethyl ester 
• 94-02-0 ethyl 3-oxo-3-phenylpropionate 

Downstream Products

• 67560-62-7 2,6-diphenyl-3,7-dioxabicyclo<3.3.0>octane 
• 67560-62-7 (+/-)-1ξ,4ξ-Diphenyl-(3ar,6ac)-tetrahydro-furo[3,4-c]furan 
• 107626-93-7 cis-3,4-Dibenzyl-tetrahydro-furan 
• 67560-63-8 diequatorial 2,4-diphenyl-3,7-dioxabicyclo<3.3.0>octane 
• 67560-63-8 1ξ,3ξ-Diphenyl-(3ar,6ac)-tetrahydro-furo[3,4-c]furan 

Relevant academic research and scientific papers

Synthesis and N.m.r. Spectra of 2,6- and 2,4-Diaryl-3,7-dioxabicyclooctanes

A series of isomeric 2,6- and 2,4-diaryl-3,7-dioxabicyclooctanes have been prepared via the corresponding threo, and erythro-dioxo-diesters.Comparison of their 1H and 13C n.m.r. spectra reveals small differences in chemical shifts and coupling constants which could be diagnostic in assigning structures to such compounds.The structure of 4-hydroxysesamin has been confirmed by direct correlation with sesamin.