Methyl phosphonic dichloride

Weeks MH Acute vapor toxicity of phosphorus oxychloride, phosphorus trichloride and methyl phosphonic dichloride. Am Ind Hyg Arrowy 25 470-475, 1964... 

METHYL PHOSPHONIC DICHLORIDE see MOB399 METHYLPHOSPHONOFLUORIDIC ACID ISOPROPYL ESTER see IPXOOO METHYLPHOSPHONOFLUORIDIC ACID-1-METHYLETHYL ESTER see IPXOOO METHYLPHOSPHONOTHIOIC ACID-S-(2-(BIS(METHYLETHYL)AAaNO)ETHYL)o-ETHYL ESTER see EIGOOO... 

Hydrogen-bond formation with phenol has been used in an i.r. study of v-(P=0) in the dioxaphospholans (98) to show that basicity depends on the nature of R and increases in the order OMeeight-membered 1,3,6,2-dioxazaphosphocines (99), which are currently of interest for comparison with the better known six-membered analogues, can be obtained from methyl-phosphonic dichloride and the appropriate 2,2 -iminobis(ethanol)." ... 

To a stirred solution of 105 g (0.396 mole) of [phenyl(tri-methylsilyl)methyl]phosphonous dichloride in 2-2.5 L of diethyl ether in a 4-L flask, 178 g (1.584 moles) of l,4-diazabicyclo[2.2.2]octane (DBO) is added. The mixture is stirred overnight at ambient temperature and then filtered. The solid is washed three times with 100-mL portions of pentane. The collected filtrates are concentrated to 1.5 L at ambient temperature under reduced pressure, and the base and its hydrochloride are separated by filtration. The solid is washed three times with 50-mL portions of pentane. This procedure (concentration and... 

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