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1401429-99-9

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1401429-99-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1401429-99-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,0,1,4,2 and 9 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1401429-99:
(9*1)+(8*4)+(7*0)+(6*1)+(5*4)+(4*2)+(3*9)+(2*9)+(1*9)=129
129 % 10 = 9
So 1401429-99-9 is a valid CAS Registry Number.

1401429-99-9Downstream Products

1401429-99-9Relevant articles and documents

Facile synthesis of benzimidazolin-2-chalcogenones: Nature of the carbon-chalcogen bond

Manjare, Sudesh T.,Sharma, Sagar,Singh, Harkesh B.,Butcher, Ray J.

, p. 61 - 74 (2012/10/29)

A new method using chalcogen nucleophiles E2-/E2 2- (E = S, Se, Te) for the convenient and high yield synthesis of benzimidazolin-2-chalcogenones has been developed. The reaction of strong nucleophiles E2-/E22- with various benzimidazolium salts under mild conditions afforded benzimidazolin-2- chalcogenones (10a-10g) in better yield compared to the other methods involving E0 powder. Benzimidazolin-2-tellurones were found to be unstable when pyridyl/phenyl groups were bonded to one of the nitrogens of the benzimidazolium salts and the reaction led to the isolation of the corresponding diamines (12a and 12b). The selenones/tellurones could be easily oxidized to the corresponding dihaloderivatives (16a-16e) by the reaction of the chalcogenones with bromine/iodine. The nature of the carbon-chalcogen double bond has been investigated with the help of single crystal X-ray, NMR spectroscopy and Density Functional Theory (DFT) calculations.

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