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284665-01-6

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284665-01-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 284665-01-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,4,6,6 and 5 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 284665-01:
(8*2)+(7*8)+(6*4)+(5*6)+(4*6)+(3*5)+(2*0)+(1*1)=166
166 % 10 = 6
So 284665-01-6 is a valid CAS Registry Number.

284665-01-6Relevant articles and documents

Cyclopentane Formation from Flexible Precursors Using Samarium(II) Reagents

Aretz, Christopher D.,Escobedo, Humberto,Cowen, Bryan J.

, p. 1880 - 1884 (2018/05/09)

Three efficient methods for five-membered ring carbocycle synthesis have been developed from simple starting materials using samarium(II) reagents. A Reformatsky aldol reaction proceeded efficiently with samarium(II) iodide using lithium bromide as an additive. A new intramolecular alkylation of a samarium enolate was realized with a pendant sulfonate ester leaving group. Pinacol cyclization of a simple diketone was also demonstrated giving a diol product in high stereoselectivity. A promising lead result has been established demonstrating enantioselectivity in a chiral ligand controlled Reformatsky aldol reaction.

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