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349397-05-3

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349397-05-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 349397-05-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,9,3,9 and 7 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 349397-05:
(8*3)+(7*4)+(6*9)+(5*3)+(4*9)+(3*7)+(2*0)+(1*5)=183
183 % 10 = 3
So 349397-05-3 is a valid CAS Registry Number.

349397-05-3Downstream Products

349397-05-3Relevant articles and documents

Competitive Reaction Pathways in the Nucleophilic Substitution Reactions of Aryl Benzenesulfonates with Benzylamines in Acetonitrile

Choi, Jin Heui,Lee, Byung Choon,Lee, Hai Whang,Lee, Ikchoon

, p. 1277 - 1281 (2007/10/03)

The reactions of aryl benzenesulfonates (YC6H4SO2OC6H4Z) with benzylamines (XC6H4CH2NH2) in acetonitrile at 65.0 deg C have been studied. The reactons proceed competitevely by S-O (kS-O) and C-O (kC-O) bond scission, but the former provides the major reaction pathway. On the basis of analysis of the Hammet and Broensted coefficients together with the cross-interaction constants ρXY, ρYZ, and ρXZ, stepwise mechanisms are proposed in which the S-O bond cleavage proceeds by rate-limiting formation of a trigonal-bipyramidal pentacoordinate (TBP-5C) intermediate, whereas the C-O bond scission takes place by rate-limiting expulsion of the sulfonate anion (YC6H4SO3-) from a Meisenheimer-type complex.

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