China (Mainland)
Nonafluorobutanesulfonyl fluoride/best price/high purity/cas No.375-72-4 CAS NO.375-72-4
- Min.Order: 10 Gram
- Payment Terms: L/C,T/T,Other
- Product Details
Keywords
- Nonafluorobutanesulfonyl fluoride
- purity 99% Nonafluorobutanesulfonyl fluoride
- high quality cas 375-72-4
Quick Details
- ProName: Nonafluorobutanesulfonyl fluoride/best...
- CasNo: 375-72-4
- Molecular Formula: C4F10O2S
- Appearance: details see specification
- Application: pharmaceutical intermediate
- DeliveryTime: within in 5-7 working days after recei...
- PackAge: 25kg/paper drum or basis user request
- Port: Wuhan, Shanghai, Guangzhou, Tianjin po...
- ProductionCapacity: 200 Kilogram/Month
- Purity: 99%
- Storage: Store in dry, dark and ventilated plac...
- Transportation: by sea/by express
- LimitNum: 10 Gram
- Grade: Industrial Grade,Pharma Grade
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Details
Description
Perfluorobutanesulfonyl fluoride (nonafluorobutanesulfonyl fluoride, NfF) is a colorless, volatile liquid that is immiscible with water but soluble in common organic solvents. It is prepared by the electrochemical fluorination of sulfolane. NfF serves as an entry point to nonafluorobutanesulfonates (nonaflates), which are valuable as electrophiles in palladium catalyzed cross coupling reactions. As a perfluoroalkylsulfonylating agent, NfF offers the advantages of lesser cost and greater stability over the more frequently used triflic anhydride. The fluoride leaving group is readily substituted by nucleophiles such as amines, phenoxides, and enolates, giving sulfonamides, aryl nonaflates, and alkenyl nonaflates respectively. However, it is not attacked by water (in which it is stable at pH<12). Hydrolysis by barium hydroxide gives Ba(ONf)2, which upon treatment with sulfuric acid gives perfluorobutanesulfonic acid and insoluble barium sulfate.
Properties
Appearance & Physical State: clear colorless or slightly yellow liquid
Density: 1.68
Melting Point: -110ºC
Boiling Point: 64ºC
Flash Point: 65-66ºC
Refractive Index: 1.3
Safety Info
Safety Statements: S25-S36/37/39-S45
HS Code: 2942000000
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