76341-63-4

Basic information

• Product Name: dioctan-2-yl methylphosphonate
• Synonyms: Bis(1-methylheptyl) methylphosphonate; Dioctan-2-yl methylphosphonate; phosphonic acid, P-methyl-, bis(1-methylheptyl) ester
• CAS NO: 76341-63-4
• Molecular Formula: C₁₇H₃₇O₃P
• Molecular Weight: 320.4476
• Mol File: 76341-63-4.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 386.5°C at 760 mmHg
• Flash Point: 201.1°C
• Density: 0.924g/cm³
• Vapor Pressure: 7.83E-06mmHg at 25°C
• Refractive Index: 1.438
• CAS DataBase Reference: dioctan-2-yl methylphosphonate(CAS DataBase Reference)
• NIST Chemistry Reference: dioctan-2-yl methylphosphonate(76341-63-4)
• EPA Substance Registry System: dioctan-2-yl methylphosphonate(76341-63-4)

Safety Data

• Hazardous Substances Data: 76341-63-4(Hazardous Substances Data)

Upstream product

• 4128-31-8 rac-octan-2-ol 
• 995-88-0 S,S-diethylmethyldithiophosphonate 
• 676-97-1 methylphosphonic acid dichloroanhydride 

Relevant articles and documents

Methylphosphonic acid dimethyl heptyl esters synthetic method

The invention relates to a synthesis method of dimethylheptyl methylphosphonate, and aims to solve the difficulty in raw material measurement and the safety problem caused by the use of the high-pressure reaction kettle in the existing technique, thereby lowering the production cost. The invention has the advantages of simple operating procedure, high output and high yield, and is suitable for industrial production. The method comprises the following steps: adding an acyl-chlorination reagent into a reaction vessel, wherein the acyl-chlorination reagent is thionyl chloride, phosphorous pentachloride or triphosgene; dropwisely adding dimethyl methyl phosphonate (DMMP) into the acyl-chlorination reagent at room temperature and adding catalytic amount of catalyst, wherein the consumption of the acyl-chlorination reagent is 2-5 times of the DMMP (0.6-1.5 times for triphosgene) on mol basis, and the catalyst is N,N-di-substituted-formamide or N-containing aromatic heterocyclic ring or N-substituted N-containing aromatic heterocyclic ring or tertiary amine; and uniformly stirring at room temperature.