161337-67-3 Usage
Uses
Different sources of media describe the Uses of 161337-67-3 differently. You can refer to the following data:
1. Hafnium trifluoromethanesulfonate is a recyclable catalyst for the mononitration of o-nitrotoluene. It serves as a catalyst for homogeneous methoxycarbonylation and hydrocarboxylation reactions of phenylacetylene. It is also used as a reactant for direct Friedel-Crafts reactions of chromene hemiacetals, aminomethylation reactions under Lewis acidic conditions and prins-type cyclization reactions. It is also involved in the direct polycondensation of lactic acid. Further, it is used in cationic benzylation reactions, chemoselective thioacetalization and transthioacetalization of carbonyl compounds.
2. Catalyst for:Homogeneous methoxycarbonylation and hydrocarboxylation reactions of phenylacetyleneDirect Friedel-Crafts reactions of chromene hemiacetalsAminomethylation reactions under Lewis acidic conditionsPrins-type cyclization reactionsDirect polycondensation of lactic acidCationic benzylation reactionsChemoselective thioacetalization and transthioacetalization of carbonyl compounds
Check Digit Verification of cas no
The CAS Registry Mumber 161337-67-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,3,3 and 7 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 161337-67:
(8*1)+(7*6)+(6*1)+(5*3)+(4*3)+(3*7)+(2*6)+(1*7)=123
123 % 10 = 3
So 161337-67-3 is a valid CAS Registry Number.
InChI:InChI=1/4CHF3O3S.Hf/c4*2-1(3,4)8(5,6)7;/h4*(H,5,6,7);/q;;;;+4/p-4