6401-03-2

Basic information

• Product Name: METHYL NONAFLATE
• Synonyms: METHYL NONAFLATE;METHYL NONAFLUOROBUTANESULFONATE;methyl nonafluoro-1-butanesulfonate;MethylnonafluoroButanesulphonate;Methyl nonaflate, Methyl perfluoro-1-butanesulfonate;Methyl perfluoro-1-butanesulfonate;Methylnonafluorobutane-1-sulphonate
• CAS NO: 6401-03-2
• Molecular Formula: C5H3F9O3S
• Molecular Weight: 314.13
• Mol File: 6401-03-2.mol
• Article Data: 3

Chemical Properties

• Boiling Point: 155-156°C
• Flash Point: 50
• Appearance: /
• Density: 1.673g/cm³
• Vapor Pressure: 3.92mmHg at 25°C
• Refractive Index: 1.316
• Storage Temp.: 2-8°C
• CAS DataBase Reference: METHYL NONAFLATE(CAS DataBase Reference)
• NIST Chemistry Reference: METHYL NONAFLATE(6401-03-2)
• EPA Substance Registry System: METHYL NONAFLATE(6401-03-2)

Safety Data

• Hazard Codes: T,C
• Statements: 20/21/22-36/37/38-34
• Safety Statements: 23-36/37/39-45-26
• RIDADR: UN 3265 8/PG 2
• Hazardous Substances Data: 6401-03-2(Hazardous Substances Data)

Usage

InChI:InChI=1/C5H3F9O3S/c1-17-18(15,16)5(13,14)3(8,9)2(6,7)4(10,11)12/h1H3

Upstream product

• 375-73-5 perfluorobutanesulfonic acid 
• 77-78-1 dimethyl sulfate 
• 111831-41-5 nonafluorobutane-1-sulfonic acid silver salt 
• 74-88-4 methyl iodide 
• 74-87-3 methylene chloride 
• 79410-50-7 Perfluoro-n-butanesulfonyl hypochlorite 
• 67-56-1 methanol 
• 36913-91-4 nonaflyl anhydride 

Relevant articles and documents

Synthesis and Reactions of Perfluorobutanesulfonyl Hypohalites

Two new hypohalites, perfluoro-n-butanesulfonyl hypochlorite and hypobromite, are reported.The hypochlorite is prepared by the low-temperature reaction of ClF with the acid C4F9SO2OH.The hypobromite is prepared by reaction of the hypochlorite with bromine.The new compounds contain very electrophilic halogen atoms and exhibit reactions similar to the analogous trifluoromethanesulfonates, CF3SO2OX (X=Cl, Br).The new hypohalites exhibit somewhat greater stability than the trifluoromethanesulfonates but form analogous decomposition products.Characterization of the newcompounds is given along with several reactions with olefins and halides to yield a variety of new esters.

Alkylation of 1,3-Dithietane 1,1,3,3-Tetroxide (Disulfene) by Nonafluorobutanesulfonates

Silyl and alkyl esters of nonafluorobutanesulfonic acid are extremely powerful substitution reagents for disulfenes.Starting from trans-2,4-trimethylsilyldisulfene (1) and methyl nonafluorobutanesulfonate (11), 2,4-dimethyl-2,4-bis(trimethylsilyl)-1,3-dithietane 1,1,3,3-tetroxide (2) is prepared. 2 is hydrolyzed to 2,4-dimethyl-1,3-dithietane 1,1,3,3-tetroxide (3).Rapid H/D exchange reaction of 3 with D2O leads to 4.Compound 3 is deprotonated by aqueous potassium hydroxide and a potassium salt is obtained, the structure of which is most probably 5a. 2,2,4,4-Tetramethyl-1,3-dithietane 1,1,3,3-tetroxide (7) is obtained from 5 and methyl iodide, i.e. the ring system remains intact, whereas hydrolysis furnishes the ring-opened product 6. - Three new routes for the synthesis of methyl nonafluorobutanesulfonate (11) via the silver salt of 9 or dimethyl sulfate (96percent yield) or nonafluorobutanesulfonic anhydride (10) are described. Key Words: 1,3-Dithietane 1,1,3,3-tetroxides, substituted/ Nonafluorobutanesulfonates