53502-23-1Relevant articles and documents
Electron Impact Ionized Benzoylnitroanilines and their N-Alkyl and N-Acyl Derivatives
Ayyangar, N. R.,Sudalai, A.,Daniel, Thomas
, p. 633 - 635 (2007/10/02)
The behaviour of some benzoylnitroanilines and their derivatives under electron impact ionization was investigated by means of low-resolution mass spectrometry.Some characteristic rearrangement processes are discussed.
Acyl Trimethylsilyl Polyphosphates as Activated Esters in Acylation Reactions
Rao, C. Someswara,Rambabu, M.,Srinivasan, P. S.
, p. 407 - 411 (2007/10/02)
The preparation and application of a new class of activated esters, acyl trimethylsilyl polyphosphates, are described.These complexes, prepared by the reaction of trimethylsilyl carboxylates with phosphorus pentoxide, are versatile acylating agents under relatively mild conditions.Sodium or potassium halides and imidazole are very effective catalysts leading to the in situ generation of reactive acyl halides and acyl imidazolides.Amines, amides, alcohols and phenols, p-thiocresol, carboxylic acids and trimethylsilyl carboxylates, and hexamethyldisilazane have been acylated to give high yields of amides, imides, esters, thioesters, anhydrides and nitriles, respectively.