Autoxidation of N-alkylamides. Part I. N-Acylamides as oxidation products
作者:M. V. Lock、B. F. Sagar
DOI:10.1039/j29660000690
日期:——
Products of the thermal and photosensitised autoxidation of N-alkyl- and NN-dialkyl-amides have been identified. N-n-Alkylamides yield principally N-acylamides, primary amides, and N-formylamides, as a result of initial abstraction of a hydrogen atom from the carbon adjacent to nitrogen. Formation of N-formylamides, and of N-acylamides from N-s-alkylamides, involves C(1)–C(2) bond scission in an N-alkyl
A new and convenient method was found for the one-pot synthesis of symmetrical and unsymmetrical linear imides by -reaction of aliphatic and aromatic nitriles with acyclic carboxylic anhydrides in the presence of silica sulfuric acid as an active and -recyclable reagent.
New procedures based on the oxidation by bromine-catalysed hydrogen peroxide in a two-phase system provide simple and cheap transformations of alkylamines to carbonyl derivatives (aldehydes, ketones, carboxylic acid, imides, lactams) through the corresponding acetamides.
Double Molecular Recognition with Aminoorganoboron Complexes: Selective Alcoholysis of β-Dicarbonyl Derivatives
作者:Shunsuke Oishi、Susumu Saito
DOI:10.1002/anie.201200304
日期:2012.5.29
Double duty: Aminoorganoboron (AOB) complexes recognize alcohol and β‐dicarbonyl units, and thereby facilitate chemo‐ and site‐selectivealcoholysis of the latter (see scheme). The complex activates both reaction partners. This strategy enables CC, CN, and CO bond cleavage in addition/elimination reactions under near neutral pH conditions and provides a new method for functional group conversions