76672-92-9

Upstream product

• 77-78-1 dimethyl sulfate 
• 75-11-6 diiodomethane 
• 76672-90-7 3-(3,4-dimethoxyphenyl)-1-(2-hydroxy-4-methoxyphenyl)-1-propanone 
• 105245-59-8 2'-Hydroxy-3,4,4'-trimethoxy-α-hydroxymethyldihydrochalcone 
• 120-14-9 3,4-dimethoxy-benzaldehyde 
• 57601-14-6 2'-hydroxy-3,4,4'-trimethoxychalcone 
• 552-41-0 1-(2-hydroxy-4-methoxyphenyl)ethanone 
• 50-00-0 formaldehyd 
• 91100-83-3 3-(3,4-dimethoxybenzyl)-7-methoxy-4H-chromen-4-one 
• 186581-53-3 diazomethane 
• 102067-88-9 3-deoxysappanone B 

Downstream Products

• 113187-32-9 (3R,4R)-3-(3,4-Dimethoxy-benzyl)-4,7-dimethoxy-chroman-3-ol 
• 111254-24-1 (3R,4R)-3,4-dihydroxy-3-(3,4-dimethoxybenzyl)-7-methoxychroman 
• 111254-23-0 (3R,4S)-3,4-dihydroxy-3-(3,4-dimethoxybenzyl)-7-methoxychroman 
• 113122-58-0 (R)-(-)-O-trimethylsappanone B 

Relevant academic research and scientific papers

An improved synthesis of homoisoflavanones

2′-Hydroxydihydrochalcones i.e. 1-(2-hydroxyphenyl)-3- phenylpropanones having different oxygenation patterns in ring-A and ring-B, on refluxing with paraformaldehyde powder and aqueous diethylamine in ethanol give the corresponding homoisoflavanones in excellent yields.

Homoisoflavonoids and Related Compounds. IV. Absolute Configurations of Homoisoflavonoids from Caesalpinia sappan L.

The absolute configuration of the homoisoflavonoidal components, 4-O-methylsappanol, 4-O-methylepisappanol, sappanone B, 3-deoxysappanone B and 3'-deoxysappanone B, from Caesalpinia sappan L. were determined on the basis of chemical transformations and the optical properties.Keywords - Caesalpinia sappan; Leguminosae; Sappan Lignum; heartwood; homoisoflavonoid; absolute configuration

Phase Transfer Catalysed Hydroxymethylation of 2'-Hydroxydihydrochalcones: A New Synthesis of Homoisoflavanones

2'-Hydroxydihydrochalcones having different oxygenation patterns in rings A and B, on treatment with formalin in chloroform-saturated aqueous potassium carbonate biphase system in the presence of a phase transfer catalyst (tetra-n-butylammonium hydrogen s

A New Biogenetic Approach for the Synthesis of Homoisoflavanones

2'-Hydroxydihydrochalkones on refluxing with methylene iodide in acetone medium in the presence of anhydrous potassium carbonate have been found to yield bi(dihydrochalkonyloxy)methanes and homoisoflavanones.