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122977-68-8

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122977-68-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 122977-68-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,2,9,7 and 7 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 122977-68:
(8*1)+(7*2)+(6*2)+(5*9)+(4*7)+(3*7)+(2*6)+(1*8)=148
148 % 10 = 8
So 122977-68-8 is a valid CAS Registry Number.

122977-68-8Relevant articles and documents

NOUVELLE SYNTHESE DE TRIFLUOROMETHYLCETONES ET D' α-BROMO TRIFLUOROMETHYLCETONES

Begue, J. P.,Mesureur, D.

, p. 271 - 282 (1988)

We report a new method for the preparation of trifluoromethylketones, as an alternative to the use of organometallics.The condensation of phosphonium ylides with trimethylsilyl trifluoroacetate provides silyloxy enol ethers whose hydrolysis leads to trifluoromethylketones.Bromation of the same silyloxy enol ether is also a convenient preparation of α-bromo trifluoromethylketone.

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