Diastereoselective multicomponent phosphoramidate-aldehyde-dienophile (PAD) process for the synthesis of polysubstituted cyclohex-2-enyl-amine derivatives

Autor: José M. Sansano, Carmen Nájera, Ihssene Chabour
Přispěvatelé: Universidad de Alicante. Departamento de Química Orgánica, Universidad de Alicante. Instituto Universitario de Síntesis Orgánica, Síntesis Asimétrica (SINTAS)
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: RUA. Repositorio Institucional de la Universidad de Alicante
Universidad de Alicante (UA)
Popis: The reaction of diethyl phosphoramidate, conjugated aldehydes and maleimides takes place in a multicomponent sequence named phosphoramidate-aldehyde-dienophile (PAD). The reaction affords a series of N-substituted phosphoramidates in good yields with α,β-unsaturated aldehydes bearing hydrogens at the γ-position. The reaction is diastereoselective and the effect of chiral information in the maleimide is evaluated. A mechanism is also postulated and the feasible hydrolysis of the phosphoramidate functional group is achieved although the final allylic amine is difficult to isolate. We gratefully acknowledge financial support from the Spanish Ministerio de Economía y Competitividad (MINECO), Agencia Estatal de Investigaci on (AEI) and Fondo Europeo de Desarrollo Regional (FEDER, EU) (Project Nos. CTQ2013-43446-P, CTQ2014-51912-REDC, CTQ2016-76782-P, CTQ2016-81797-REDC, CTQ2016-81893REDT, and CTQ2016-76155-R), the Generalitat Valenciana (PROMETEOII/2014/017) and the University of Alicante.
Databáze: OpenAIRE