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469041 Sigma-Aldrich

Hafnium(IV) trifluoromethanesulfonate hydrate

Synonym: Hafnium(IV) triflate, Hf(OTf)4

  • CAS Number 161337-67-3

  • Linear Formula (CF3SO3)4Hf

  • Molecular Weight 774.77 (anhydrous basis)

  •  MDL number MFCD01321255

  •  PubChem Substance ID 24870553

  •  NACRES NA.22

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Properties

Related Categories Catalysis and Inorganic Chemistry, Chemical Synthesis, Hafnium Catalysts More...
reaction suitability   core: hafnium
  reagent type: catalyst
mp   >350 °C (lit.)
SMILES string   FC(F)(F)S(=O)(=O)O[Hf](OS(=O)(=O)C(F)(F)F)(OS(=O)(=O)C(F)(F)F)OS(=O)(=O)C(F)(F)F
InChI   1S/4CHF3O3S.Hf/c4*2-1(3,4)8(5,6)7;/h4*(H,5,6,7);/q;;;;+4/p-4
InChI key   BQYMOILRPDTPPJ-UHFFFAOYSA-J

Description

Application

Catalyst for:
• Homogeneous methoxycarbonylation and hydrocarboxylation reactions of phenylacetylene
• Direct Friedel-Crafts reactions of chromene hemiacetals
• Aminomethylation reactions under Lewis acidic conditions
• Prins-type cyclization reactions
• Direct polycondensation of lactic acid
• Cationic benzylation reactions
• Chemoselective thioacetalization and transthioacetalization of carbonyl compounds

Excellent and recyclable catalyst for the mononitration of o-nitrotoluene.

Packaging

1 g in glass bottle

Safety & Documentation

Safety Information

Symbol 
GHS07  GHS07
Signal word 
Warning
Hazard statements 
Precautionary statements 
Target organs 
Respiratory system
Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
WGK 3
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

Documents

Certificate of Analysis (COA)

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Protocols & Articles

Articles

Fries Rearrangement

The Fries rearrangement reaction is an organic name reaction which involves the conversion of phenolic esters into hydroxyaryl ketones on heating in the presence of a catalyst. Suitable catalysts for...
Keywords: Acylations, Addition reactions, Agrochemicals, Antivirals, Catalysis, Fries Rearrangement, Michael Addition, Pharmaceutical, Rearrangements, Vitamins

Peer-Reviewed Papers
15

References

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