34637-92-8

Basic information

• Product Name: methyl hydrogen ethylphosphonate
• Synonyms: Phosphonic acid, ethyl-, monomethyl ester
• CAS NO: 34637-92-8
• Molecular Formula: C₃H₉O₃P
• Molecular Weight: 124.0755
• Mol File: 34637-92-8.mol
• Article Data: 2

Chemical Properties

• Boiling Point: 178.5°C at 760 mmHg
• Flash Point: 61.8°C
• Density: 1.169g/cm³
• Vapor Pressure: 0.465mmHg at 25°C
• Refractive Index: 1.406
• CAS DataBase Reference: methyl hydrogen ethylphosphonate(CAS DataBase Reference)
• NIST Chemistry Reference: methyl hydrogen ethylphosphonate(34637-92-8)
• EPA Substance Registry System: methyl hydrogen ethylphosphonate(34637-92-8)

Safety Data

• Hazardous Substances Data: 34637-92-8(Hazardous Substances Data)

Upstream product

• 6163-75-3 dimethyl ethylphosphonate 
• 67-56-1 methanol 

Downstream Products

• 84175-56-4 (5RS)-3,6-Di-O-benzyl-5-deoxy-1,2-O-isopropylidene-5-C-(ethylmethoxyphosphinyl)-5-C-<(p-tolylsulfonyl)-hydrazino>-α-D-xylo-hexofuranose 

Relevant articles and documents

Fragmentation-Related Phosphonylation of Nucleophiles Utilizing P-Alkyl 2,3-oxaphosphabicyclo[2.2.2]octene 3-oxide Precursors

New P-alkyl 2,3-oxaphosphabicyclo-[2.2.2]octene 3-oxides were synthesized by the Bayer-Villiger oxidation of the corresponding 7-phosphanorbornene 7-oxides and were used as precursors for reactive alkylmetaphosphonates useful in the phosphonylation of alcohols. This is the first case that the reactivity of the two regioisomers formed by O-insertion was differentiated and that the fragmentation-related phosphonylation leading to phosphonic acid-esters was achieved under microwave-assisted conditions.