OXYDES DE DIAZAPHOSPHOLINES-1,2,3: SYNTHESE ET ETUDE SPECTROGRAPHIQUE IR ET DE RMN ¹H, ³¹P, ¹³C

Abstract

δ⁵-3-dimethylamino-3-oxo-1,2,3-diazaphospholines are prepared by cyclisation of bis(dimethylami-no)phosphinallene oxides containing two electrophilic sites in position 1.3 (phosphorus atom and medium carbon allenic) with hydrazine derivatives. Mechanistic explanations of these results have been described by NMR. The IR and the ³¹P, ¹³C, ¹H chemical shifts of diazaphosphollines oxides are commented.

Key Words:

• Phosphore
• diazaphospholine
• bis(dimethylamino)phosphinallene oxide
• heterocycle
• RMN ³¹P
• RMN ¹³C
• IR