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- W2014409969 abstract "L'action des phosphodi- ou trihydrazides sur les orthoesters permet, en général, d'obtenir des tétrahydro-2,3,4,5 tétrazaphosphorines-1,2,4,5,3. Cependant, dans certains cas, il y a formation de amino-4 triazaphospholidines-1,2,4,3. Les tétrazaphosphorines-1,2,4,5,3 obtenues présentent parfois une prototropie. La présence de cette prototropie se traduit par une orientation de la réaction de certains de ces composés avec le formaldéhyde ou l'acétone. La structure des différents hétérocycles obtenus est établie par rmn. The reaction of phosphodi- or trihydrazides with orthoesters affords mainly 2,3,4,5-tetrahydro-1,2,4,5,3-tetrazaphosphorines and sometimes 4-amino-1,2,4,3-triazaphospholidines. These 1,2,4,5,3-tetrazaphosphorines present a prototropy which explains different pathways of the reaction of these derivatives with formaldehyde or acetone, The structure of all heterocycles which were obtained was established by nmr spectra." @default.
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- W2014409969 date "1977-08-04" @default.
- W2014409969 modified "2023-10-12" @default.
- W2014409969 title "Hétérocycles contenant du phosphore. XXXII. Etude de l'action des phosphorhydrazides sur les orthoesters, l'anhydride acétique et l'acide formique" @default.
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- W2014409969 doi "https://doi.org/10.1002/jhet.5570140508" @default.
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