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oa South African Journal of Chemistry - Synthesis and Spectral Characterization of Some NewCarbacylamidophosphate Derivatives. Crystal Structures ofCClC(O)NHP(O)[NH(CH)] andCHCHC(O)NHP(O)[NH(CH)]

 

Abstract

Some new carbacylamidophosphate derivatives with the general formula RC(O)NHP(O)[NH(CH)]: (R=CCl), 1a; (R=CHCl),2a; (R=CHCl), 3a; (R=CF), 4a; (R=CH), 1b; (R=-Cl-CH), 2b; (R=-Br-CH), 3b; (R=-Me-CH), 4b; were synthesized and characterized by 1H, 13C, 31P NMR and IR spectroscopy and elemental analysis. The crystalline solids of 1a and 4b were studied by single crystal X-ray diffraction analysis. The dimeric aggregate and the centrosymmetric dimer formed intermolecular N-H....O=P and N-H....O=C hydrogen bonds in 1a and 4b, respectively. In all the synthesized molecules, similar spectral patterns were obtained in the 13C NMR spectra for carbon atoms of cyclic amines with 2J = 0 and 3J ranging from 4 to 6 Hz.

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/content/chem/60/1/EJC24410
2007-01-01
2016-12-03
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