144026-79-9 Usage
Description
Scandium trifluoromethanesulfonate, commonly called Scandium(III) triflate, is a chemical compound with formula Sc(SO3CF3)3, a salt consisting of scandium cations Sc3+ and triflate SO3CF3? anions.Scandium(III) triflate is an extremely active, efficient, recoverable and reusable acylation catalyst. Its an important catalyst for the Friedel-Crafts acylation, Diels-Alder reactions and other carbon-carbon bond-forming reactions. It also stereochemically catalyzes the radical polymerization of acrylates. Scandium(III) triflate complex of (4′S,5′S)-2,6-bis[4′-(triisopropylsilyl)oxymethyl-5′-phenyl-1′,3′-oxazolin-2′-yl]pyridine has been employed as catalyst for the asymmetric Friedel-Crafts reaction between substituted indoles and methyl (E)-2-oxo-4-aryl-3-butenoates.
Chemical Properties
White powder
Uses
Different sources of media describe the Uses of 144026-79-9 differently. You can refer to the following data:
1. Scandium(III) trifluoromethanesulfonate is widely used as a catalyst in hydrothiolation, selective two-electron reduction of oxygen by ferrocene derivatives and vinylogous Fridel-crafts alkylation of indoles and pyrrole in water. It is involved in the Mukaiyama aldol addition and stereochemically catalyzes the radical polymerization of acrylates. It acts as a Lewis acid catalyst and used in the synthesis of bullvalone via a stabilized sulfur ylide.
2. Scandium Triflate is an important catalyst used in Friedel-Crafts acylation, Baylis-Hillman reaction and other carbon-carbon bond forming reactions.
Application
Scandium(III) triflate was used as a catalyst in:Hydrothiolation reaction of aromatic and aliphatic thiols.Selective two-electron reduction of O2 by ferrocene derivatives.Vinylogous Friedel-Crafts alkylation of indoles and pyrroles in water.Synthesis of β-cyanoketones.Combination with triethylsilane to reductively open functionalized pyranoside rings.The key steps of synthesis of bullvalone via a stabilized sulfur ylide.
Reactions
Water tolerant Lewis acid.
Commonly used in a range of Lewis acid catalyzed reactions.
Efficient metal source for Lewis acid catalyzed asymmetric reactions.
Catalyzes Friedel-Crafts alkylation, acylation and related reactions.
Catalyzes various domino- and multi-component processes.
Catalyzes electrophilic additions of alpha-diazoesters with ketones.
Catalyzes carbon insertion reactions.
General Description
Scandium(III) triflate is an extremely active, efficient, recoverable and reusable acylation catalyst. Its an important catalyst for the Friedel-Crafts acylation, Diels-Alder reactions and other carbon-carbon bond-forming reactions. It also stereochemically catalyzes the radical polymerization of acrylates. Scandium(III) triflate complex of (4′S,5′S)-2,6-bis[4′-(triisopropylsilyl)oxymethyl-5′-phenyl-1′,3′-oxazolin-2′-yl]pyridine has been employed as catalyst for the asymmetric Friedel-Crafts reaction between substituted indoles and methyl (E)-2-oxo-4-aryl-3-butenoates.
Check Digit Verification of cas no
The CAS Registry Mumber 144026-79-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,4,0,2 and 6 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 144026-79:
(8*1)+(7*4)+(6*4)+(5*0)+(4*2)+(3*6)+(2*7)+(1*9)=109
109 % 10 = 9
So 144026-79-9 is a valid CAS Registry Number.
