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51599-74-7

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51599-74-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 51599-74-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,5,9 and 9 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 51599-74:
(7*5)+(6*1)+(5*5)+(4*9)+(3*9)+(2*7)+(1*4)=147
147 % 10 = 7
So 51599-74-7 is a valid CAS Registry Number.

51599-74-7Relevant articles and documents

Ruthenium Tetroxide Oxidation of N-Alkyllactams

Yoshifuji, Shigeyuki,Arakawa, Yukimi,Nitta, Yoshihiro

, p. 357 - 363 (2007/10/02)

Ruthenium tetroxide (RuO4) oxidation of N-alkyllactams proceeded regioselectively depending on the size of lactam ring, except for the seven-membered ring.Four- and eight-membered N-methyl- and N-ethyllactams were oxidized at the exocyclic α-carbon adjacent to nitrogen to produce the N-acyllactams and NH-lactams, while five- and six-membered lactams underwent endocyclic oxidation to yield the cyclic imides.Oxidation of seven-membered lactams yielded a mixture of products arising from both exocyclic and endocyclic oxidations.These regioselectivities were confirmed in the oxidation of substrates having a tertiary carbon at the oxidation position.Keywords---oxidation; ruthenium tetroxide oxidation; regioselective oxidation; hydroxylation; imide synthesis; N-alkyllactam; N-acyllactams; imide; ruthenium tetroxide; two-phase method

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