Pathways for the hydrolysis of phorate: product studies by (31)P NMR and GC-MS.

作者信息

Hong F, Pehkonen S O, Brooks E

机构信息

Departments of Civil and Environmental Engineering and Chemistry, University of Cincinnati, Cincinnati, Ohio 45221-0071, USA.

出版信息

J Agric Food Chem. 2000 Jul;48(7):3013-7. doi: 10.1021/jf990558u.

DOI:10.1021/jf990558u

PMID:10898658

Abstract

A new intramolecular mechanism is proposed for the hydrolysis of phorate. (31)P NMR was used to study the formation of P-containing products of phorate hydrolysis in situ. When hydrolysis was followed by (31)P NMR, a dominant P-containing product was found and was identified to be diethyl dithiophosphate using methylation and GC-MS. Combining the data from phorate hydrolysis at three different temperatures, thermodynamic parameters were calculated. The contributions of various possible pathways to phorate hydrolysis are discussed.

摘要