147411-55-0Relevant articles and documents
Preparation of heterocyclic enamines. Useful intermediates in the synthesis of 1,4-dihydropyridines
Poindexter, Graham S.,Catt, John D.,Sasse, Philip A.,Kercher, Michele A.
, p. 295 - 305 (2007/10/02)
Various heterocycles (4,5-dihydrooxazoles, 4,5-dihydro-4H-oxazines, and tetrazoles) can be readily metalated and condensed with a variety of organic nitriles to afford heterocyclic enamines (2).These enamines can be utilized in Hantzsch condensation reactionms to prepare heterocyclic substituted 1,4-dihydropyridines (3) which are unavailable by standard routes.