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80874-61-9

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80874-61-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 80874-61-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,8,7 and 4 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 80874-61:
(7*8)+(6*0)+(5*8)+(4*7)+(3*4)+(2*6)+(1*1)=149
149 % 10 = 9
So 80874-61-9 is a valid CAS Registry Number.

80874-61-9Relevant 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

, (2019/05/22)

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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