1058163-18-0Relevant articles and documents
Synthesis and Diels - Alder cycloadditions of exo-imidazolidin-2-one dienes
Bautista, Rafael,Bernal, Pablo,Herrera, Rafael,Santoyo, Blanca M.,Lazcano-Seres, J. Miguel,Delgado, Francisco,Tamariz, Joaquin
experimental part, p. 7901 - 7911 (2011/11/29)
(Figure presented) An efficient and versatile synthesis of novel exo-imidazolidin-2-one dienes is described. This involves the base-assisted condensation/cyclization cascade reaction of the monoimino derivatives of diacetyl with a series of isocyanates. This methodology enables preparation of symmetrical dienes, as long as the substrates have the same N substituent. Moreover, use of different N-substituted starting materials leads to formation of nonsymmetrical dienes. The reactivity of these dienes was evaluated in Diels - Alder reactions, showing a high reactivity.
