Asian Journal of Research in Chemistry

Nitesh Goswami ¹, Shashi Prabha ²

Affiliations
1 Gwalior Engineering College, Maharajpura, Airport Road, Gwalior (M.P.), IN
2 School of Studies in Chemistry, Jiwaji University, Gwalior (M.P.), IN

Abstract

Phosphoric bis-(o-Methoxyphenyl amide) chloride, a C-N-P containing ester, on kinetic examination exhibited a rate maximum (via the Neutral form only) at 4.0 M-HCl and gave second-order kinetic rate coefficients during hydrolysis in the acid range, 0.01-7.0M HCl at 40(± 0.5)°C. In the low acid range Zwitterionic species while in the higher acid range the undissociated form have been assessed as the major contributory reactive forms, undergoing bimolecular (Arrhenius Parameters) hydrolysis with P-N bond fission, The synthesis of the bis-amide was possible by the phosphorylation procedure and identification of the product was achieved by elemental analysis, and ³¹P NMR study in particular.

Keywords

Phosphoric Bis-Amide, Undissociated Form, Hydrolysis, Synthesis.

Full Text

     

Soram Ibomcha Singh ¹, Shashi Prabha ¹

Affiliations
1 School of Studies in Chemistry, Jiwaji University, Gwalior-474011, IN

Abstract

Phosphoramidates (N-P) are biologically active organic compounds because they are capable of inhibiting enzyme action. A few members of this class were synthesized and checked for their anticholinesterase properties and they were found to be a good reactive phosphorylating agent to block AChE rather than BuChE in the poisoning process. The presence of chloro-substituent (either ortho- or para-) in the aryl moiety of these phosphoramidates does not show any significant contribution during toxicological study made in vitro. These phosphoramidates were characterized by FTIR, ³¹P NMR and GC-MS spectral studies.

Keywords

Phosphorylation, Phosphoramidates, Anticholinesterase, ³¹P NMR, Toxicity.

Full Text