33976-92-0

Upstream product

• 54696-05-8 4'-benzyloxy-acetophenone 
• 56441-55-5 ethyl 4-(benzyloxy)benzoate 
• 18362-51-1 1,3-bis(4'-methoxyphenyl)propane-1,3-dione 

Downstream Products

• 215232-70-5 κ(2)-O,O-1,3-bis(4-hydroxyphenyl)propane-1,3-diolonatodimethylgallium 
• 1131344-05-2 C₁₄H₁₈O₇ 

Relevant academic research and scientific papers

First example of a diazepinoporphyrazine with dendrimeric substituents

The synthesis and physicochemical properties of a novel diazepinoporphyrazine possessing G1-dendrimeric substituents are presented. Initially, diaminomaleonitrile was condensed with 1,3-bis-(4-hydroxyphenyl)-1,3-propanedione to give a novel 1,4-diazepine-

Flavonoids from the cultured cells of Glycyrrhiza echinata

Constituents of the cultured cells of Glycyrrhiza echinata have been investigated. Echinatin (4,4′-dihydroxy-2-methoxychalcone), a biosynthetically unique retrochalcone, and licodione (1-(2,4-dihydroxyphenyl)-3-(4-hydroxyphenyl)-1,3-propanedione), a dibezoylmethane derivative, which is the possible precursor of echinatin, were obtained. The structures were determined by spectroscopic methods and syntheses. 1H NMR of licodione revealed new features in chemical shifts of protons of diketonic and keto-enolic forms. 7,4′-Dihydroxyflavone, two of its prenyl derivatives and formononetin were also isolated. A discussion on retrochalcone biosynthesis is presented.