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SYNTHESIS AND SPECTROSCOPIC INVESTIGATION OF 4-METHYLPHENYL ESTERS OF DIMETHYL PHOSPHORAMIDOCHLORIDIC ACID AND DIMETHYL PHOSPHORAMIDOFLUORIDIC ACID

Authors :
Gholivand, Khodayar
Mahmoudkhani, Amir
Khosravi, Morteza
Source :
Phosphorus, Sulfur, and Silicon and the Related Elements; September 1995, Vol. 106 Issue: 1 p173-177, 5p
Publication Year :
1995

Abstract

Synthesis of 4-methylphenyl esters of N,N-dimethyl phosphoramidochloridic acid (1) and N,N-dimethyl phosphoramidofluoridic acid (2) is reported. 18-Crown-6 with potassium fluoride was found an effective reagent for the conversion of 1 to 2. These compounds were characterized by using 1H, 31P NMR, infrared and mass spectroscopic data. Analysis of the 1H NMR spectrum of ester 1 gives a long-range 31P-1H spin spin coupling (7JP-H = 1.2 Hz). A possible explanation for this unusual seven-bond coupling is discussed. In this study, a reasonable correlation between 31P chemical shifts and P=O vibration frequencies is suggested.

Details

Language :
English
ISSN :
10426507 and 15635325
Volume :
106
Issue :
1
Database :
Supplemental Index
Journal :
Phosphorus, Sulfur, and Silicon and the Related Elements
Publication Type :
Periodical
Accession number :
ejs11437766
Full Text :
https://doi.org/10.1080/10426509508027904