ANAEROBIC CONVERSION OF 4-CARBOXYBENZALDEHYDE IN IONIC LIQUIDS
申请人:UOP LLC
公开号:US20140171680A1
公开(公告)日:2014-06-19
A method of decreasing an amount of an aromatic aldehyde in a product is described. The method includes reacting the aromatic aldehyde in the presence of a reaction medium comprising a nucleophilic solvent, or an ionic liquid and a carboxylic acid, the reaction taking place in the absence of a hydrogenating agent and an oxidizing agent, to form aromatic carboxylic acid, an aromatic alcohol, or both.
US8884056B2
申请人:——
公开号:US8884056B2
公开(公告)日:2014-11-11
[EN] ANAEROBIC CONVERSION OF AROMATIC ALDEHYDES IN IONIC LIQUIDS<br/>[FR] CONVERSION ANAÉROBIE D'ALDÉHYDES AROMATIQUES EN LIQUIDES IONIQUES
申请人:UOP LLC
公开号:WO2014092911A2
公开(公告)日:2014-06-19
A method of decreasing an amount of an aromatic aldehyde in a product is described. The method includes reacting the aromatic aldehyde in the presence of a reaction medium comprising a nucleophilic solvent, or an ionic liquid and a carboxylic acid, the reaction taking place in the absence of a hydrogenating agent and an oxidizing agent, to form aromatic carboxylic acid, an aromatic alcohol, or both.
TBHP/n-Bu4PBr-Promoted Oxidative Cross-Dehydrogenative Coupling of Aryl Methanols: A Facile Synthesis of Symmetrical Carboxylic Anhydride Derivatives
作者:Mehdi Adib、Rahim Pashazadeh
DOI:10.1055/s-0036-1590905
日期:2018.1
A transition-metal-free oxidative cross-dehydrogenativecoupling reaction has been developed for the preparation of symmetrical carboxylic anhydrides through self-coupling dual C–O bond formations of aryl methanols. In the presence of a catalytic amount of tetrabutylphosphonium bromide (TBPB) as transfer agent and aqueous tert-butyl hydroperoxide (TBHP) as oxidant and reactant, methylene groups of