Addition dipolaire-1,3 aux olefines portant une substitution captodative: reactivite comparee des α et des β amino acrylnitriles vis a vis des arylazides. |
| |
Authors: | F Texier A Derdour H Benhaoua T Benabdellah O Yebdri |
| |
Institution: | Laboratoire de Synthèse organique, Projet ONRS 75B/O33. Institute des Sciences Exactes, Université d''Oran, Algerie France. |
| |
Abstract: | Arylazides reacted with α amino-acrylonitriles to produce 1-aryl-5-amino-triazoles, and with β amino-acrylonitriles to give 1-aryl-4-cyanotriazoles. Kinetics showed the Hammett ρ to be > o and therefore, these reactions are controlled by LUMOazide-HOMOolefin interaction. Despite the captodative substitution in and (ΔΔ E≠~ 500 cal.M?1) does'nt agree with a diradical intermediate. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |