Cas 1286749-28-7,methyl 2-acetyl-7-(4-n-butylphenyl)hept-6-ynoate

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Check Digit Verification of cas no

The CAS Registry Mumber 1286749-28-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,6,7,4 and 9 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1286749-28:
(9*1)+(8*2)+(7*8)+(6*6)+(5*7)+(4*4)+(3*9)+(2*2)+(1*8)=207
207 % 10 = 7
So 1286749-28-7 is a valid CAS Registry Number.

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1286749-28-7Relevant academic research and scientific papers

Iodobenzene-catalyzed intramolecular oxidative cyclization reactions of ss-Alkynyl β-Ketoesters

Rodriguez, Arantxa,Moran, Wesley J.

, p. 2220 - 2223 (2011)

Chemical equations presented. Iodobenzene is shown to catalyze the 5-exo-dig cyclization of ss-alkynyl β-ketoesters under oxidative conditions that generate hypervalent iodine species in situ. The cyclopentane products contain adjacent quaternary and tertiary stereocenters which are generated with excellent diastereoselectivity.

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