Copper trifluoromethanesulfonate , 98% , 34946-82-2

Synonym(s):
Copper(II) triflate;Cu(OTf)₂;Cupric trifluoromethanesulfonate;Trifluoromethanesulfonic acid copper(II) salt

CAS NO.：34946-82-2

Empirical Formula: C2CuF6O6S2

Molecular Weight: 361.68

MDL number: MFCD00077492

EINECS: 252-300-8

PRODUCT Properties

• Melting point: ≥300 °C
• storage temp.: Inert atmosphere,Room Temperature
• solubility: Water (Slightly)
• form: Powder
• color: White to slightly blue or light gray
• Water Solubility: Soluble in water.
• Sensitive: Hygroscopic
• Hydrolytic Sensitivity: 6: forms irreversible hydrate
• BRN: 4028198
• Exposure limits: ACGIH: TWA 1 mg/m3; NIOSH: IDLH 100 mg/m3; TWA 1 mg/m3
• Stability: hygroscopic
• InChIKey: SBTSVTLGWRLWOD-UHFFFAOYSA-L

Description and Uses

Copper(II) trifluoromethanesulfonate is a mild lewis acid. It is used as catalyst which promotes dehydration of alcohols and diols to alkenes at ambient temperatures. It is widely used to generate carbenoid species from ?-diazo esters and ketones, via in situ reduction to the Cu(I) species. It is also promotes the reaction between diazo esters and imines to give aziridines. It catalyzes syn-selective aldol condensation of (Z)-silyl enol ethers with aldehydes, Friedel-Crafts alkylation, acylation reactions of aromatics and addition of trimethylsilyl cyanide to carbonyl compounds.

Safety

• Symbol(GHS): GHS05
• Signal word: Danger
• Hazard statements: H318-H314
• Precautionary statements: P280-P305+P351+P338-P310-P260-P264-P301+P330+P331+P310-P303+P361+P353+P310+P363-P304+P340+P310-P305+P351+P338+P310-P405-P501-P260h-P301+P330+P331-P303+P361+P353-P501a
• Hazard Codes: C,Xi
• Risk Statements: 34
• Safety Statements: 26-36/37/39-45-27
• RIDADR: UN 3261 8/PG 2
• WGK Germany: 3
• F: 3-10
• Hazard Note: Irritant/Hygroscopic
• TSCA: No
• HazardClass: 8
• PackingGroup: III
• HS Code: 29049085