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1292839-95-2

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1292839-95-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1292839-95-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,9,2,8,3 and 9 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1292839-95:
(9*1)+(8*2)+(7*9)+(6*2)+(5*8)+(4*3)+(3*9)+(2*9)+(1*5)=202
202 % 10 = 2
So 1292839-95-2 is a valid CAS Registry Number.

1292839-95-2Downstream Products

1292839-95-2Relevant articles and documents

Stability and organocatalytic efficiency of N-heterocyclic carbenes electrogenerated in organic solvents from imidazolium ionic liquids

Feroci, Marta,Chiarotto, Isabella,D'Anna, Francesca,Forte, Gianpiero,Noto, Renato,Inesi, Achille

, p. 122 - 129 (2015)

The kinetic of degradation of 1-butyl-3-methylimidazole-2-ylidene (selected as model N-heterocyclic carbene - NHC), generated in organic solvents by cathodic reduction of the parent 1-butyl-3-methylimidazolium salts BMIm-X, was studied by a simple voltammetric analysis. The effect of NHC degradation rate on the efficiency of an organocatalyzed reaction (the synthesis of γ-butyrolactone from cinnamaldehyde and trifluoromethylacetophenone) was investigated. The nature of the solvent and of the anion X- have a remarkable effect on the stability of the NHC, the bis(trifluoromethylsulfonyl) imide anion being the best for a long lasting carbene (while acetonitrile seems to be the worst solvent). The role of X- has been related to a competition between NHC and X-, in the hydrogen bonding interaction with BMIm+. The higher the stabilization of NHC by hydrogen bond, the lower its degradation rate. These hydrogen bonding interactions, previously reported in pure BMIm-X, seem to be operative even in organic solvents containing BMIm-X at low concentrations (c -1). The effect of the nitrogen alkyl substituents on the degradation of NHC (and thus on its efficiency as organocatalyst) is also pointed out.

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