CAS 161337-67-3 Hafnium(IV) trifluoromethanesulfonate

Synonyms

Hafnium triflate

IUPAC Name

hafnium;trifluoromethanesulfonic acid;

Molecular Weight

774.8

Molecular Formula

C4F12HfO12S4

Canonical SMILES

C(F)(F)(F)S(=O)(=O)[O-].C(F)(F)(F)S(=O)(=O)[O-].C(F)(F)(F)S(=O)(=O)[O-].C(F)(F)(F)S(=O)(=O)[O-].[Hf+4]

InChI

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

Melting Point

>350 °C

Purity

90%

Complexity

806

Covalently-Bonded Unit Count

Exact Mass

775.75466

H-Bond Acceptor

H-Bond Donor

Heavy Atom Count

Monoisotopic Mass

775.75466

Rotatable Bond Count

Topological Polar Surface Area

262 Å²

Application

Hafnium(IV) trifluoromethanesulfonate serves as a versatile and recyclable catalyst with applications in various organic reactions. Its primary purpose is to facilitate the mononitration of o-nitrotoluene and act as a catalyst in homogeneous methoxycarbonylation and hydrocarboxylation reactions of phenylacetylene. This compound is crucial for direct Friedel-Crafts reactions involving chromene hemiacetals, aminomethylation under Lewis acidic conditions, and prins-type cyclization reactions. Additionally, it plays a significant role in the direct polycondensation of lactic acid and is effective in cationic benzylation reactions, as well as in the chemoselective thioacetalization and transthioacetalization of carbonyl compounds, highlighting its broad utility in chemical synthesis processes.

February 14, 2025

Hafnium(IV) trifluoromethanesulfonate: An Essential Catalyst for Research

Using this product significantly enhanced our methoxycarbonylation reactions. Its versatility in facilitating Friedel-Crafts and cyclization reactions makes it invaluable for our lab's projects. Highly recommend for efficient, consistent results.