Cycloaddition of Methyl 2‐(2,6‐Dichlorophenyl)‐2H‐azirine‐3‐carboxylate to Electron‐Rich 2‐Azadienes.

Abstract

Pyrimidine derivatives Pyrimidine derivatives R 0510Cycloaddition of Methyl 2-(2,6-Dichlorophenyl)-2H-azirine-3-carboxylate to Electron-Rich 2-Azadienes. -The reaction of activated azadienes (I) with an electron-deficient 2H-azirine (II) is reported for the first time. Hydrolysis of the resulting tetrahydropyrimidinones [cf. (IIIa)] provides functionalized aziridine esters (V). -(ALVES*, M. J.; DURAES, M. M.; FORTES, A. G.; Tetrahedron Lett. 44 (2003) 27, 5079-5082; Dep. Quim., Univ. Minho, P-4710 Braga, Port.; Eng.) -Mais 40-159