PREPARATION, DERIVATIZATION WITH TRIMETHYLSILYLDIAZOMETHANE, AND GC/MS ANALYSIS OF A “POOL” OF ALKYL METHYLPHOSPHONIC ACIDS FOR USE AS QUALITATIVE STANDARDS IN SUPPORT OF COUNTERTERRORISM AND THE CHEMICAL WEAPONS CONVENTION
摘要:
There are hundreds of nerve agents in the class of alkyl methylphosphonofluoridates covered by Schedule 1 of the CWC (Chemical Weapons Convention). Hydrolysis of these sarin-like nerve agents results in all equal number of alkyl methylphosphonic acids. These allkyl methylphosphonic acids are persistent and provide good evidence of specific agent production or use. In order to support the CWC and counterterrorism activities, it is desirable to have ready access to each of these hydrolysis products for use as qualitative standards. A means for simultaneously producing multiple alkyl methylphosphonates from methylphosphonic acid and the corresponding alcohols was developed. Derivatization of these alkyl methylphosphonic acids with trimethylsilyldiazomethane yields the corresponding methyl esters which are suitable for GC/MS analysis.
Vepsaelaeinen, Jouko; Pohjala, Esko; Nupponen, Heikki, Phosphorus, Sulfur and Silicon and the Related Elements, 1992, vol. 70, # 3/4, p. 183 - 204
作者:Vepsaelaeinen, Jouko、Pohjala, Esko、Nupponen, Heikki、Vainiotalo, Pirjo、Ahlgren, Markku
DOI:——
日期:——
Cathode-catalyzed transesterification of alkylphosphonates
作者:M. E. Niyazymbetov、B. Kostizella、I. Keitel、K. H. Schwartz
DOI:10.1007/bf00959658
日期:1991.1
The cathodic electrolysis of aliphatic alcohols and alkylphosphonates in acetonitrile with 0.5 N Et4NClO4 as the base electrolyte leads to mono- and ditransesterified phosphonates. The yield and ratio of these products is a function of the nature of the starting reagents and amount of current passed.