26119-41-5

Basic information

• Product Name: Phosphonic acid, (2-chloroethyl)-, dimethyl ester
• Synonyms: 2-Chlor-aethan-phosphonsaeure-(1)-dimethylester;(2-Chlor-aethyl)-phosphonsaeure-dimethylester;dimethyl 2-chloroethylphosphonate;Phosphonic acid,(2-chloroethyl)-,dimethyl ester;(2-chloro-ethyl)-phosphonic acid dimethyl ester
• CAS NO: 26119-41-5
• Molecular Formula: C4H10ClO3P
• Molecular Weight: 172.548
• Mol File: 26119-41-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Phosphonic acid, (2-chloroethyl)-, dimethyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: Phosphonic acid, (2-chloroethyl)-, dimethyl ester(26119-41-5)
• EPA Substance Registry System: Phosphonic acid, (2-chloroethyl)-, dimethyl ester(26119-41-5)

Safety Data

• Hazardous Substances Data: 26119-41-5(Hazardous Substances Data)

Upstream product

• 107-04-0 1-Bromo-2-chloroethane 
• 121-45-9 phosphorous acid trimethyl ester 
• 107-06-2 1,2-dichloro-ethane 

Downstream Products

• 4645-32-3 dimethylvinylphosphonate 
• 16672-87-0 2-chloroethylphosphonic acid 

Relevant articles and documents

Optimization of 2-chloroethylphosphonic acid synthesis by acid hydrolysis of dialkyl-2-chloroethylphosphonate compounds. Influence of the nature of alkyl phosphonate functions

2-Chloroethylphosphonic acid (ethephon) 1 is very much used in agriculture as a plant regulator.It is an especially good stimulant used to increase the latex production of Hevea brasiliensis.Ethephon is generally obtained by HCl hydrolysis of bis(2-chloroethyl)-2-chloroethylphosphonate, previously prepared by Arbuzov rearrangement of tri(2-chloroethyl)phosphite.However, because of the low reactivity of 2-chloroethylphosphonate functions towards acid hydrolysis, this synthetic way is not convenient to prepare pure 2-chloroethylphosphonic acid with high yields.The present purpose was to study the hydrolysis of various dialkyl-2-chloroethylphosphonates in view to define an efficient synthetic protocol, leading to very pure crystallized ethephon with high yields. - Keywords: 2-chloroethylphosphonic acid; ethephon; dialkyl-2-chloroethylphosphonate; Arbuzov reaction; trialkyl phosphite; acid hydrolysis