Chandrasekhar, S. and Gopalaiah, K. (2003) Ketones to Amides via a Formal Beckmann Rearrangement in “One Pot”: A Solvent-Free Reaction Promoted by Anhydrous Oxalic Acid. Possible Analogy with the Schmidt Reaction. Tetrahedron Letters, 44, 7437-7439.
http://dx.doi.org/10.1016/j.tetlet.2003.08.038

has been cited by the following article:

• TITLE: Solvent-Free Synthesis of Carboxylic Acids and Amide Analogs of CAPE (Caffeic Acid Phenethyl Ester) under Infrared Irradiation Conditions

  AUTHORS: Pablo A. Martínez-Soriano, José R. Macías-Pérez, Ana María Velázquez, Brígida del Carmen Camacho-Enriquez, Gustavo Pretelín-Castillo, Mónica B. Ruiz-Sánchez, Víctor H. Abrego-Reyes, Saúl Villa-Treviño, Enrique Angeles

  KEYWORDS: Amides, Carboxylic Acids, Amines, Infrared Light, Solventless, CAPE, CAPA, Cinnamic Acid Analogs

  JOURNAL NAME: Green and Sustainable Chemistry, Vol.5 No.2, May 4, 2015

  ABSTRACT: A convenient and easy method is described for the formation of carboxamides from carboxylic acids and primary amines in solventless conditions using infrared (IR) light. Thus, under IR light, cinnamic acid derivatives and amines can produce yields ranging from 50% to 85% of the resulting amide.