32745-63-4

Upstream product

• 25054-53-9 3,4-(methylenedioxy)benzoyl chloride 
• 108-95-2 phenol 
• 94-53-1 Piperonylic acid 
• 120-57-0 piperonal 
• 98-80-6 phenylboronic acid 
• 2751-90-8 tetraphenylphosphonium bromide 
• 326-56-7 methyl 3,4-methylenedioxybenzoate 

Downstream Products

• 94-53-1 Piperonylic acid 
• 145102-06-3 S-propyl 3,4-(methylenedioxy)benzothioate 
• 209981-66-8 (benzo[d][1,3]dioxol-5-yl)diphenylphosphine oxide 
• 4421-09-4 piperonylonitrile 

Relevant academic research and scientific papers

Direct esterification of aromatic aldehydes with tetraphenylphosphonium bromide under oxidative N-heterocyclic carbene catalysis

An unconventional reagent, tetraphenylphosphonium bromide, was employed as a phenyl source in the direct transformation of aromatic aldehydes to the corresponding phenyl esters under oxidative N-heterocyclic carbene (NHC) catalysis. The phenyl esters were obtained in moderate yields under mild and organocatalytic conditions. Copyright

N-heterocyclic carbene-catalyzed aerobic oxidative direct esterification of aldehydes with organoboronic acids

A simple procedure affording benzoates through a NHC-catalyzed aerobic oxidative esterification of aldehydes with organoboronic acids has been disclosed. This process allows access to a wide variety of aromatic esters in good to excellent yields under simple, efficient, and sustainable reaction conditions (see scheme).

N-Heterocyclic carbene catalysed aerobic oxidation of aromatic aldehydes to aryl esters using boronic acids

The organocatalytic behavior of N-heterocyclic carbenes in the aerobic oxidation of aromatic aldehydes to esters with boronic acids has been explored. This transition metal-free protocol allows access to a wide variety of aromatic esters in good to excellent yields under mild reaction conditions.

Oxidative esterification of aldehydes with alcohols and phenols in air

Nucleophilic carbene-catalysed oxidative esterification of aldehydes with alcohols and phenols without additional oxidant under an air atmosphere has been achieved, which provides a metal-free new methodology for the oxidative esterification of aldehydes.

NHC-iron-catalyzed aerobic oxidative aromatic esterification of aldehydes using boronic acids

(Figure presented) NHC-iron complexes prepared in situ very efficiently afforded benzoates via the aerobic oxidative aromatic esterification of aldehydes with boronic acids. This method uses equimolar amounts of both the aldehyde and the boronic acid allo

Palladium-catalyzed aromatic esterification of aldehydes with organoboronic acids and molecular oxygen

A palladium-catalyzed aromatic esterification reaction of aldehydes with arylboronic acids under an air atmosphere was achieved. This reaction tolerates many functional groups and provides aryl benzoate derivatives with yields ranging from moderate to good. Dioxygen takes part in the reaction and is crucial for this transformation.

Regioselective ring opening by propanethiolate of (methylenedioxy)benzenes with electron-withdrawing substituents

The ring opening reaction of (methylenedioxy)benzenes 1 with propanethiolate in DMF leads to products 2 and/or 3, depending on the nature of the electron-withdrawing substituent Z.