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494789-83-2

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494789-83-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 494789-83-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,9,4,7,8 and 9 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 494789-83:
(8*4)+(7*9)+(6*4)+(5*7)+(4*8)+(3*9)+(2*8)+(1*3)=232
232 % 10 = 2
So 494789-83-2 is a valid CAS Registry Number.

494789-83-2Downstream Products

494789-83-2Relevant articles and documents

Synthesis of 2-Quinolinones via a Hypervalent Iodine(III)-Mediated Intramolecular Decarboxylative Heck-Type Reaction at Room Temperature

Fan, Huaqiang,Pan, Peng,Zhang, Yongqiang,Wang, Wei

supporting information, p. 7929 - 7932 (2019/01/04)

A hypervalent iodine(III)-mediated intramolecular decarboxylative Heck-type reaction of 2-vinyl-phenyl oxamic acids has been developed. The unique ring-strain-enabled radical decarboxylation mechanism is preliminarily revealed. This protocol features metal-free reaction conditions and operational simplicity, allowing the lactamization of 2-vinylanilines using a readily accessible carbonyl source and the synthesis of various 2-quinolinones with excellent chemoselectivity at room temperature.

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