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100390-66-7

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100390-66-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 100390-66-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,3,9 and 0 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 100390-66:
(8*1)+(7*0)+(6*0)+(5*3)+(4*9)+(3*0)+(2*6)+(1*6)=77
77 % 10 = 7
So 100390-66-7 is a valid CAS Registry Number.

100390-66-7Relevant articles and documents

Ruthenium-catalyzed intramolecular cyclization of diazo-β-ketoanilides for the synthesis of 3-alkylideneoxindoles

Chan, Wai-Wing,Kwong, Tsz-Lung,Yu, Wing-Yiu

experimental part, p. 3749 - 3755 (2012/06/01)

With [Ru(p-cymene)Cl2]2 as catalyst, diazo-β-ketoanilides would undergo intramolecular carbenoid arene C-H bond functionalization to afford 3-alkylideneoxindoles in up to 92% yields. The reaction occurs under mild conditions and exhibits excellent chemoselectivity. The lack of primary KIE (kH/kD ~ 1) suggests that the reaction should not proceed by rate-limiting C-H bond cleavage; a mechanism involving cyclopropanation of the arene is proposed.

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