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57179-42-7

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57179-42-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 57179-42-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,1,7 and 9 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 57179-42:
(7*5)+(6*7)+(5*1)+(4*7)+(3*9)+(2*4)+(1*2)=147
147 % 10 = 7
So 57179-42-7 is a valid CAS Registry Number.

57179-42-7Downstream Products

57179-42-7Relevant articles and documents

STUDIES ON DIHYDROPYRIDINE DERIVATIVES-I 4,7-DIHYDROISOXAZOLOPYRIDINES

Yamamori, Teruo,Hiramatu, Yoshiharu,Sakai, Katunori,Adachi, Ikuo

, p. 913 - 918 (2007/10/02)

Reactions of 5-aminoisoxazoles with α,β-unsaturated ketones in t-butanol on heating afforded 4,7-dihydroisoxazolopyridines.However, when the reactions were carried out at 20 deg C using ethylene glycol as the solvent, the kinetically controlled amino adducts were obtained in excellent yields.The amino adducts were converted into the thermodynamically controlled 4,7-dihydroisoxazolopyridines by heating.Tentative mechanisms for the reaction are also presented.

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