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177972-59-7

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177972-59-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 177972-59-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,7,9,7 and 2 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 177972-59:
(8*1)+(7*7)+(6*7)+(5*9)+(4*7)+(3*2)+(2*5)+(1*9)=197
197 % 10 = 7
So 177972-59-7 is a valid CAS Registry Number.

177972-59-7Relevant articles and documents

Synthesis of cyclic dienamide using ruthenium-catalyzed ring-closing metathesis of ene-ynamide

Mori, Miwako,Wakamatsu, Hideaki,Saito, Nozomi,Sato, Yukako,Narita, Rie,Sato, Yoshihiro,Fujita, Reiko

, p. 3872 - 3881 (2007/10/03)

Ring-closing metathesis of ene-ynamide, which has alkene and ynamide moieties in a molecule, using a second-generation ruthenium carbene complex produced nitrogen-containing heterocycles, which have a dienamide moiety, in high yields. Diels-Alder reaction

A stereochemically flexible approach to pyrrolidines based on 5-endo-trig iodocyclisations of homoallylic sulfonamides

Jones,Knight,Hibbs

, p. 1182 - 1203 (2007/10/03)

5-endo-trig Iodocyclisations of the (E)-homoallylic sulfonamides 24 in the presence of potassium carbonate give excellent yields of trans-2,5-disubstituted-3-iodopyrrolidines 36. In the absence of base, these initial kinetic products undergo rapid isomeri

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