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Dimethyl methylphosphonate can be prepared from trimethyl phosphite and a halomethane (e.g. iodomethane) via the Michaelis–Arbuzov reaction. [2]Dimethyl methylphosphonate is a schedule 2 chemical as it may be used in the production of chemical weapons.
Dimethyl methylphosphonate (DMMP), one of the simplest phosphonate diesters; Etidronic acid (HEDP): 1-hydroxyethylidene-1,1-diphosphonic acid, used in detergents, water treatment, cosmetics and pharmaceuticals; ATMP: Aminotris(methylenephosphonic acid), chelating agent; EDTMP: Ethylenediaminetetra(methylenephosphonic acid), chelating agent
Schedule 2 substances, in the sense of the Chemical Weapons Convention, are chemicals that are feasible to use as chemical weapons themselves (Part A), or their manufacturing precursors (Part B), and which have small-scale applications outside of chemical warfare and so can be legitimately manufactured in small quantities.
Dimethylphosphite is an organophosphorus compound with the formula (CH 3 O) 2 P(O)H, known as dimethyl hydrogen phosphite (DMHP). Dimethylphosphite, is a minor tautomer of the phosphorus(V) derivative. It is a reagent for generating other organophosphorus compounds, exploiting the high reactivity of the P-H bond. The molecule is tetrahedral. It ...
Methylphosphonyl dichloride is produced by oxidation of methyldichlorophosphine, with sulfuryl chloride: [3]. CH 3 PCl 2 + SO 2 Cl 2 → CH 3 P(O)Cl 2 + SOCl 2. It can also be produced from a range of methylphosphonates (e.g. dimethyl methylphosphonate) via chlorination with thionyl chloride.
Methylphosphinic acid can be produced by the hydrolysis of dimethyl methylphosphonate, which is conveniently obtained from trimethylphosphite. [2] Hydrolysis of methyldichlorophosphine yields methylphosphinic acid, [3]
Diisopropyl methylphosphonate (DIMP), also known as diisopropyl methane-phosphonate and phosphonic acid and methyl-bis-(1-methylethyl)ester, is a chemical by-product in the production of sarin gas when two equivalents of isopropyl alcohol react with methylphosphonyl difluoride instead of one.
Trimethyl phosphite is susceptible to oxidation to trimethyl phosphate: . P(OCH 3) 3 + 0.5 O 2 → OP(OCH 3) 3. It reacts with a catalytic amount of methyl iodide in the Arbuzov reaction to give dimethyl methylphosphonate: