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107768-26-3

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107768-26-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 107768-26-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,7,7,6 and 8 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 107768-26:
(8*1)+(7*0)+(6*7)+(5*7)+(4*6)+(3*8)+(2*2)+(1*6)=143
143 % 10 = 3
So 107768-26-3 is a valid CAS Registry Number.

107768-26-3Relevant articles and documents

Deuterium Isotope Effects on the Oxygen Atom Transfer Reactions of α-Azo Hydroperoxides

Baumstark, Alfons L.,Vasquez, Pedro C.

, p. 1939 - 1942 (2007/10/02)

Cyclic α-azo hydroperoxide 1 (cis-3-bromo-4,5-dihydro-5-hydroperoxy-4,4-dimethyl-3,5-diphenyl-3H-pyrazole) and acyclic α-azo hydroperoxide 2 were converted to the ROOD analogues 1-d and 2-d.The reactions of 1 and 1-d in CDCl3 at 34 deg C with amines, diphenyl sulfide, and 2,3-dimethyl-2-butene yielded the corresponding amine oxides, sulfoxides, and epoxides in better than 90percent yields.The reactions were found to be of the first order in both hydroperoxide and substrate (second order overall).Deuterium isotope effects (kH/kD) of 1.3+/-0.1 were found for the oxidation of the three types of substrate.The reactions of 2 and 2-d with benzyl methyl sulfide and 2,3-dimethyl-2-butene, carried out in C6D6 at 34 deg C, produced the corresponding sulfoxide and epoxide in 90percent+ yields.As expected, the reactions were of the second order overall (first order in hydroperoxide) in the aprotic medium.Values of kH/kD of 1.3+/-0.1 were found for these oxidations.The mechanistic implications of these results are discussed.

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