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17877-22-4

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17877-22-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 17877-22-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,8,7 and 7 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 17877-22:
(7*1)+(6*7)+(5*8)+(4*7)+(3*7)+(2*2)+(1*2)=144
144 % 10 = 4
So 17877-22-4 is a valid CAS Registry Number.

17877-22-4Downstream Products

17877-22-4Relevant articles and documents

Diastereoselective synthesis of functionally substituted alkene dimers and oligomers, catalysed by chiral zirconocenes

Kovyazin, Pavel V.,Abdullin, Il'giz N.,Parfenova, Lyudmila V.

, p. 144 - 152 (2018/11/21)

The research addresses the reaction of terminal alkenes and propene with AlR3 (R = Me, Et) in the presence of chiral Zr complexes, rac-[Y(η5-C9H10)2]ZrCl2 (Y = C2H4, SiMe2) or (NMI)2ZrCl2 (NMI- η5–neomenthylindenyl), and methylaluminoxane. The effect of reaction conditions, catalyst and trialkylalane structure on the substrate conversion and the reaction chemo- and stereoselectivity has been studied. The reaction predominantly goes via the stage of alkene methyl(ethyl)zirconation with subsequent introduction of substrate molecules into the Zr-C bond. As a result, a diastereoselective one-pot method for the synthesis of functionally substituted linear terminal alkene dimers and propene oligomers was developed.

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