Carbon transfer reactions of functionalized oxazolidines and their open chain enamine tautomers to enamine nucleophiles. A facile synthesis of substituted pyridines and ring annulated derivatives
摘要:
Oxazolidines substituted at C-2 with -CH2-EW(-CO-, etc.) and capable of existing as ring-chain (enamine) tautomers' react with cyclic, acyclic and heterocyclic enamine derivatives in a 1:1 stoichiometric manner to provide a versatile synthesis of substituted pyridines and their ring annulated derivatives. (C) 1997 Elsevier Science Ltd. All rights reserved.