37487-90-4

Upstream product

• 77394-22-0 (+/-)-4',5,5',7-tetra-O-methyl-2,3-cis-3,4-cis-crombeol 
• 30759-13-8 crombeone 
• 1247-97-8 pentamethyl quercetin 
• 2746-94-3 2,3,8,10-tetramethoxy<1>benzopyrano<3,2-c>benzopyran-7(5H)-one 
• 37487-89-1 (+)-6a,12a-trans-2,3,8,10-tetramethoxy-6a,12a-dihydro<1>benzopyrano<3,2-c><2>benzopyran-7(5H)-one 
• 37487-89-1 (+/-)-4',5,5',7-tetra-O-methyl-2,3-cis-crombeone 

Relevant academic research and scientific papers

Metabolites from the Purple Heartwood of Mimosoideae. Part 3. Acacia crombei C.T. White: Structure and Partial Synthesis of Crombenin, A Natural Spiropeltogynoid

Crombenin, 4,4',6,6',7-pentahydroxyisochroman-3'-spirobenzofuran-3(2H)-one, the first spiropeltogynoid, is related to the concominant crombeone (8-hydroxypeltogynone) from which it is derived via oxidation with alkaline hydrogen peroxide of the chalcone i

Metabolites from the Purple Heartwood of Mimosoideae. Part 2. Acacia carnei Maiden: Isolation, Synthesis, and Reactions of Crombeone

The range of natural peltogynoid-type chalcone, flavonol, and dihydroflavonol analogues is extended by the recognition of carnein, β-photomethylquercetin, and (+)-2,3-trans-crombeone in the purple heartwood of Acacia carnei.The first synthesis of a 2,3-trans-peltogynone, crombeone tetramethyl ether, is effected and its catalytic reduction leads to a 2,3-trans-3,4-cis-peltogynol analogue.Crombeone itself is subject to a variety of methylene insertion reactions with diazomethane.