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812-11-3

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812-11-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 812-11-3 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,1 and 2 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 812-11:
(5*8)+(4*1)+(3*2)+(2*1)+(1*1)=53
53 % 10 = 3
So 812-11-3 is a valid CAS Registry Number.

812-11-3Relevant articles and documents

Polar trifluoromethylation reactions: the formation of bis(trifluoromethyl)iodine(III) compounds and trifluoromethyl iodine(III) cations and anions

Tyrra, Wieland,Naumann, Dieter

, p. 327 - 333 (2007/10/02)

IX3 (X = Cl, OCOCF3, ONO2) reacts with Cd(CF3)2 complexes or Bi(CF3)3 to yield the corresponding CF3IX2 derivatives. 19F nuclear magnetic resonance spectroscopic evidence is found for + and I(CF3)2X (X = Cl, OCOCF3) in the reactions of CF3IX2 with Cd(CF3)2 complexes.During the reaction of CF3IF2 and Hg(CF3)2 the new species I(CF3)2F and cis-- are identified by nuclear magnetic resonance spectroscopy.The reactions proceed under polar conditions and can be accelerated by the addition of a Lewis acid such as BF3, B(OCOCF3)3, or Sb(V) compounds.Difluoromethyl compounds are formed as by-products.Key words: polar trifluoromethylations, trifluoromethyl iodine(III) compounds, difluoromethyl group formation.

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