18933-98-7

Basic information

• Product Name: ethyl hydrogen benzylphosphonate
• CAS NO: 18933-98-7
• Molecular Formula: C₉H₁₃O₃P
• Molecular Weight: 200.1715
• Mol File: 18933-98-7.mol
• Article Data: 19

Chemical Properties

• Boiling Point: 323.9°C at 760 mmHg
• Flash Point: 149.7°C
• Density: 1.2g/cm³
• Vapor Pressure: 0.000104mmHg at 25°C
• Refractive Index: 1.518
• CAS DataBase Reference: ethyl hydrogen benzylphosphonate(CAS DataBase Reference)
• NIST Chemistry Reference: ethyl hydrogen benzylphosphonate(18933-98-7)
• EPA Substance Registry System: ethyl hydrogen benzylphosphonate(18933-98-7)

Safety Data

• Hazardous Substances Data: 18933-98-7(Hazardous Substances Data)

Upstream product

• 64-17-5 ethanol 
• 63581-66-8 benzylphosphonic acid monomethyl ester 
• 6881-57-8 benzylphosphonic acid 
• 78-39-7 Triethyl orthoacetate 
• 1080-32-6 O,O-diethyl benzylphosphonate 
• 100-44-7 benzyl chloride 
• 308795-35-9 (C₆H₅CH₂POC₂H₅O₂BClC₆H₁₁)2 
• 100-39-0 benzyl bromide 
• 945933-82-4 benzylphosphonic acid benzyl ethyl ester 
• 122-52-1 triethyl phosphite 
• 155801-93-7 2,4-dinitrophenyl ethyl benzyl phosphonate 

Downstream Products

• 945933-82-4 benzylphosphonic acid benzyl ethyl ester 
• 945933-84-6 benzylphosphonic acid ethyl isopropyl ester 
• 41760-95-6 monoethyl P-benzylphosphonochloridate 
• 27272-09-9 O-ethyl N,N-diethyl-P-benzylphosphonamidate 
• 164650-62-8 1-benzyl-4-benzylidene-piperidine 
• 144108-12-3 benzylphosphonic acid isopropyl ester 
• 100715-74-0 Benzylphosphonic acid monobenzyl ester 

Relevant articles and documents

Synthesis and characterization of some new organophosphonates and their adducts with some metal salts

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Selective hydrolysis of phosphorus(v) compounds to form organophosphorus monoacids

An azide and transition metal-free method for the synthesis of elusive phosphonic, phosphinic, and phosphoric monoacids has been developed. Inert pentavalent P(v)-compounds (phosphonate, phosphinate, and phosphate) are activated by triflate anhydride (Tf2O)/pyridine system to form a highly reactive phosphoryl pyridinium intermediate that undergoes nucleophilic substitution with H2O to selectively deprotect one alkoxy group and form organophosphorus monoacids.

Transition metal-free access to 3,4-dihydro-1,2-oxaphosphinine-2-oxides from phosphonochloridates and chalcones through tandem Michael addition and nucleophilic substitution

A novel and transition metal-free synthesis of 3,4-dihydro-1,2-oxaphosphinine 2-oxides was developed. LiHMDS-mediated tandem Michael addition and nucleophilic substitution of readily available phosphonochloridates and chalcones afforded a variety of valuable 3,4-dihydro-1,2-oxaphosphinine 2-oxides bearing diverse functionalities in excellent yields and satisfactory to good diastereoselectivity (up to 99% yield and up to 99?:?1 dr).