4687-40-5

Upstream product

• 7572-90-9 ethyl 2-bromo-3-(4-benzyloxy-3-methoxyphenyl)-3-oxopropionate 
• 4687-37-0 ethyl 3,4-dimethoxybenzoylacetate 
• 56606-57-6 ethyl 2-bromo-3-(3,4-dimethoxyphenyl)-3-oxo-propanoate 
• 81581-29-5 erythro-diethyl 2,3-bis-(3,4-dimethoxybenzoyl)butane-1,4-dioate 
• 944329-82-2 C₂₆H₂₈O₁₀ 
• 3535-37-3 3,4-dimethoxybenzoic acid chloride 
• 93-07-2 Veratric acid 
• 76787-81-0 3-oxo-2-veratroyl-butyric acid ethyl ester 
• 851-36-5 diethyl (3,4-dimethoxybenzoyl)malonate 
• 81581-25-1 ethyl 2-(4-benzyloxy-3-methoxybenzoyl)acetoacetate 
• 60525-32-8 ethyl 3-[4-(benzyloxy)-3-methoxyphenyl]-3-oxopropanoate 
• 1486-53-9 4-(benzyloxy)-3-methoxybenzoic acid 
• 1486-52-8 3-methoxy-4-benzyloxybenzoyl chloride 

Downstream Products

• 72536-39-1 threo-2,3-bis-(α-hydroxy-3,4-dimethoxybenzyl)butane-1,4-diol 
• 4687-44-9 2,5-bis-(3,4-dimethoxy-phenyl)-furan-3,4-dicarboxylic acid diethyl ester 
• 4676-33-9 3,4-dimethyl-2,5-bis(3,4-dimethoxyphenyl)furan 

Relevant academic research and scientific papers

Simple synthesis of eudesmin through oxidative coupling of carbanions and reductive catalytic hydrogenation of diketo diester

A simple synthesis of eudesmin (1) is described. The key fragments were diol 13, dicarbethoxyethane 4, and diketo diester 5, which were prepared via reductive catalytic hydrogenation and oxidative intermolecular coupling of carbanions. This method is useful to generate the core skeleton of an endo-endo furofuran ring. Copyright Taylor & Francis Group, LLC.

Efficient selective formation of C-C single bonds and C=C double bonds by NBS-promoted oxidative coupling of β-keto esters

A new application of NBS, which results in the oxidative coupling of β-keto esters to selectively form C-C single and C=C double bonds, can be controlled by the amount of NBS and t-BuOK employed. This methodology adds a new entry to C-C single and C=C double-bond formation between active methylene groups under mild conditions with high selectivity. Copyright Taylor & Francis Group, LLC.

A novel synthetic route to furan-lignans

Three naturally occurring furan-lignans and two analogs have been synthesized by a short and efficient route starting from the corresponding aryl acid. The selective reductive removal of allylic hydroxy by palladium oxide in a mixed solvent of THF-CHCl3 was employed as the key step.

Synthesis and N.m.r. Spectra of 2,6- and 2,4-Diaryl-3,7-dioxabicyclooctanes

A series of isomeric 2,6- and 2,4-diaryl-3,7-dioxabicyclooctanes have been prepared via the corresponding threo, and erythro-dioxo-diesters.Comparison of their 1H and 13C n.m.r. spectra reveals small differences in chemical shifts and coupling constants which could be diagnostic in assigning structures to such compounds.The structure of 4-hydroxysesamin has been confirmed by direct correlation with sesamin.