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26137-09-7

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26137-09-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 26137-09-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,6,1,3 and 7 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 26137-09:
(7*2)+(6*6)+(5*1)+(4*3)+(3*7)+(2*0)+(1*9)=97
97 % 10 = 7
So 26137-09-7 is a valid CAS Registry Number.

26137-09-7Relevant articles and documents

Palladium(II)-catalyzed Intermolecular Cascade Cyclization of Methylenecyclopropanes with Aromatic Alkynes: Construction of Spirocyclic Compounds Containing Indene and 1,2-Dihydronaphthalene Moieties

Fang, Wei,Wei, Yin,Shi, Min

, (2019)

A palladium(II)-catalyzed intermolecular cascade cyclization of methylenecyclopropanes with aromatic alkynes is reported in this paper. The reaction involves a migratory insertion of alkyne, an intramolecular Heck-type reaction, and β-H elimination, providing a series of spirocyclic compounds containing indene and 1,2-dihydronaphthalene moieties in moderate to excellent yields upon heating.

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