Synthese De (1,2a)Benzimidazolo-1,3,5,2-triazaphosphorine-2-oxides

The reaction of hexamethylphosphotriamide or methylphosphonic bis(dimethylamide) compounds with amidines derived from N-Benzimidazoyl imidates 1 leads to (1,2a)benzimidazolo-1,3,5,2-tiazaphosphorine-2-oxides 4 in good yields. If the condensation is realized at room temperature, N-phosphonic amidines...

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Bibliographic Details
Published in:Phosphorus, sulfur, and silicon and the related elements sulfur, and silicon and the related elements, 2002-05, Vol.177 (5), p.1033-1040
Main Authors: Abderrahim, Raoudha, Baccar, Belgacem, Benkhoud, et Mohamed Lamine
Format: Article
Language:eng ; fre
Subjects:
(1,2a)Benzimidazolo-1,3,5,2-triazaphosphorine-2-oxides
Amidines
Hexamethylphosphotriamide
Imidates
Methylphosphonic Bis(dimethylamide)
N-phosphonic Amidines
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Summary:The reaction of hexamethylphosphotriamide or methylphosphonic bis(dimethylamide) compounds with amidines derived from N-Benzimidazoyl imidates 1 leads to (1,2a)benzimidazolo-1,3,5,2-tiazaphosphorine-2-oxides 4 in good yields. If the condensation is realized at room temperature, N-phosphonic amidines 3 can be isolated as intermediates. The isolated compounds 2 , 3 , and 4 are identified by spectroscopic methods: IR, 1 H, 13 C, 31 P, NMR, and M.S.
ISSN:1042-6507
1563-5325
DOI:10.1080/10426500211735