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127667-29-2

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127667-29-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 127667-29-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,6,6 and 7 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 127667-29:
(8*1)+(7*2)+(6*7)+(5*6)+(4*6)+(3*7)+(2*2)+(1*9)=152
152 % 10 = 2
So 127667-29-2 is a valid CAS Registry Number.

127667-29-2Downstream Products

127667-29-2Relevant articles and documents

Displacement of Halogen of 2-Halogeno-Substituted Benzonitriles with Carbanions. Preparation of (2-Cyanoaryl)arylacetonitriles

Bech Sommer, Michael,Begtrup, Mikael,Boegesoe, Klaus Peter

, p. 4817 - 4821 (2007/10/02)

(2-Cyanoaryl)arylacetonitriles are obtained by displacement of halogen of 2-halobenzonitriles with phenylacetonitrile anions.The method also applies to a number of heteroaromatics with ortho-situated halogen and cyano groups and to heteroarylacetonitrile anions.The anions were generated by using potassium tert-butoxide or potassium carbonate.Calculated electron densities of the electrophilic centers reflect the reactivity in the displacement reaction.The calculations indicate that the potassium ion complexes with the cyano group of the 2-halobenzonitriles in nonpolar solvents, thus promoting competitive addition of the anion to the cyano group.Carbanions derived from acids with pKa ca. 19-23 similarly displaced the halogen of 2-halobenzonitriles.

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