20195-06-6

Basic information

• Product Name: PHORATE-OXON
• Synonyms: PHORATE-O-ANALOGUE;PHORATE-OXON
• CAS NO: 20195-06-6
• Molecular Formula: C₇H₁₇O₃PS
• Molecular Weight: 212.25
• Product Categories: AcaricidesEnvironmental Standards;Insecticides;MetabolitesPesticides;OrganophorousAlphabetic;P;PER - POLA;Pesticides;Pesticides&Metabolites
• Mol File: 20195-06-6.mol
• Article Data: 5

Chemical Properties

• Boiling Point: 250.8°Cat760mmHg
• Flash Point: 4 °C
• Appearance: /
• Density: 1.088g/cm³
• Vapor Pressure: 0.0336mmHg at 25°C
• Refractive Index: 1.454
• CAS DataBase Reference: PHORATE-OXON(CAS DataBase Reference)
• NIST Chemistry Reference: PHORATE-OXON(20195-06-6)
• EPA Substance Registry System: PHORATE-OXON(20195-06-6)

Safety Data

• Hazard Codes: F,Xn
• Statements: 11-38-48/20-63-65-67
• Safety Statements: 36/37-62
• RIDADR: UN 1294 3/PG 2
• Hazardous Substances Data: 20195-06-6(Hazardous Substances Data)

Usage

Uses

O,O-Diethyl S-Propyl Phosphorothioate is a useful intermediate for organic synthesis. It is used in the synthetic preparation of the novel pesticide imicyafos and in the preparation of other related impurities of ethoprophos.

Hazard

A poison.

InChI:InChI=1/C7H17O3PS/c1-4-7-12-11(8,9-5-2)10-6-3/h4-7H2,1-3H3

Upstream product

• 4251-16-5 propyl thiocyanate 
• 2303-76-6 sodium diethyl phosphite 
• 4403-51-4 bis(diethylphosphoryl)disulfide 
• 92556-46-2 diphenyl n-propoxyphosphine 
• 540-54-5 1-Chloropropane 
• 762-04-9 phosphonic acid diethyl ester 
• 5852-63-1 sodium diethylthiophosphate 
• 599-91-7 propyl tosylate 
• 71-23-8 propan-1-ol 
• 2465-65-8 O,O'-diethyl thiophosphoric acid 
• 122-52-1 triethyl phosphite 
• 629-19-6 Dipropyl disulfide 
• 6028-61-1 dipropyl trisulfide 
• 106-94-5 propyl bromide 

Downstream Products

• 1498-51-7 ethyl phosphodichloridite 
• 7651-98-1 O-ethyl-S-propyl phosphorochloridate 

Relevant articles and documents

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Reaction of Three-coordinate Phosphorus Compounds with Organophosphorus Pseudohalogens. 3. Phosphonium and Phosphorane Intermediates in the Desulfurization and Dehalogenation of Bis(phosphinoyl) Disulfides. Influence of Lewis Acids on the Reaction Chemoselectivity

The reactions of bis(phosphinoyl) disulfides RR1P(O)S-S-P(O)RR1 1 with PIII compounds have been investigated and various mechanistic features have been elucidated by variable-temperature 31P NMR spectroscopy.These studies show that in most cases phosphonium intermediates 5 and 6 are involved.In cases were ligands on PIII increase the stability of the five coordinate structures phosphorane intermediates are observed.In the isomerization 5 -> 6, the mode of decomposition (desulfurization, deoxygenation or dealkylation) to give stable end products is influenced by electronic and steric factors.The presence of the Lewis acid BF3 influences considerably the stability of the transient species 5 and 6 and the chemoselectivity of the reaction.

Direct Conversion of Alcohols into Phosphorothiolates

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