84989-91-3

Upstream product

• 1131-62-0 1-(3,4-dimethoxyphenyl)ethanone 
• 149-73-5 trimethyl orthoformate 

Downstream Products

• 129193-03-9 methyl 2,3-O-<1-(3,4-dimethoxyphenyl)ethylidene>-α-D-mannopyranoside 
• 129193-02-8 methyl 2,3:4,6-di-O-<1-(3,4-dimethoxyphenyl)ethylidene>-α-D-mannopyranoside 
• 129192-85-4 methyl 4,6-O-<(S)-1-(3,4-dimethoxyphenyl)ethylidene>-α-D-mannopyranoside 
• 129192-84-3 methyl 4,6-O-<(S)-1-(3,4-dimethoxyphenyl)ethylidene>-α-D-glucopyranoside 
• 129192-88-7 methyl 2,3-di-O-benzoyl-4,6-O-<(R)-1-(3,4-dimethoxyphenyl)ethylidene>-β-D-galactopyranoside 
• 84966-78-9 (Z)-2-(3,4-Dimethoxyphenyl)-2-methoxycyclopropancarbonsaeure-ethylester 
• 84966-78-9 (E)-2-(3,4-Dimethoxyphenyl)-2-methoxycyclopropancarbonsaeure-ethylester 
• 129192-89-8 2,3-epoxypropyl 2-O-acetyl-4,6-O-<(S)-1-(3,4-dimethoxyphenyl)ethylidene>-3-O-methyl-β-D-glucopyranoside 

Relevant academic research and scientific papers

Isomerisation of 2-Alkoxycyclopropanecarboxylic Acids - An Effective Synthesis of 4-Oxo Carboxylic Acids

(Z/E)-2-Alkoxycyclopropanecarboxylic esters 2/3 were prepared from enol ethers 1 and ethyl diazoacetate.The saponification of these esters gives the corresponding (Z/E)-2-alkoxycyclopropanecarboxylic acids 4/5, which show stereomutation in water/methanol.This isomerisation was studied in labelled solvents and interpreted for the example of (E)-2-methoxy-2-phenylcyclopropanecarboxylic acid (5a).On heating in water/methanol the compounds 4/5 are transformed quantitatively into the corresponding 4-oxo carboxylic acids 6.