16269-23-1

Upstream product

• 53243-89-3 E,E-2,3-dibenzylidene succinic acid 
• 77381-22-7 diphenyl-1,4 diformyl-2,3 butadiene (E,E) 
• 100-52-7 benzaldehyde 

Downstream Products

• 71481-05-5 2,3-dibenzylbut-2-en-dioic anhydride 
• 18654-32-5 2-benzylidene,3-benzyl-butanedioic anhydride 
• 101723-61-9 2,3-dibenzylbutanedioic anhydride 
• 1985-37-1 4-phenylnaphtho[2,3-c]furan-1,3-dione 
• 726194-05-4 2,3,4-tribenzyl-γ-butyro-2-en-lactone 
• 53243-89-3 E,E-2,3-dibenzylidene succinic acid 
• 53244-00-1 α,δ-diphenyl-fulgide 
• 53244-01-2 dibenzylidene-succinic acid anhydride 
• 64980-69-4 4-Phenyl-4,4a-dihydro-naphtho[2,3-c]furan-1,3-dione 

Relevant academic research and scientific papers

Unusual visible-light photolytic cleavage of tertiary amides during the synthesis of cyclolignans related to podophyllotoxin

During the attempted photochemical cyclization of 2,3-bisbenzylidene-γ-hydroxybutyric acid cyclic amide ester, it was observed that a γ-butyrolactone ring was formed, which was concurrent with the release of the amine fragment from the amide. The process occurs with high yield giving rise to the formation of β-apopicropodophyllin and its regioisomer. Additional experiments confirmed the photochemical nature of this transformation, and that it is independent from the photocyclization of the benzylidene groups – a typical reactivity for the members of the fulgide family. In contrast to the latter UV-driven cyclization, the photochemical cleavage of the amide was proven to proceed under irradiation with visible light.

Total synthesis of (±) maculalactone A, maculalactone B and maculalactone C and the determination of the absolute configuration of natural (+) maculalactone A by asymmetric synthesis

Maculalactones A, B and C from the marine cyanobacterium Kyrtuthrix maculans are amongst the only compounds based on the tribenzylbutyrolactone skeleton known in nature and (+) maculalactone A from the natural source possesses significant biological activ

Photochromic systems. Part 1. Structural and spectroscopic study of photochromically active products of Stobbe condensation. 2,3-Dibenzylidenesuccinic acid and its anhydride

E,E-2,3-Dibenzylidenesuccinic acid (2) and its anhydride (1) were synthesized, their crystal structures and 1H and 13C nuclear magnetic resonance spectra were determined, and electron charge densities of carbon atoms were calculated.These results were rel