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512176-79-3

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512176-79-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 512176-79-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,1,2,1,7 and 6 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 512176-79:
(8*5)+(7*1)+(6*2)+(5*1)+(4*7)+(3*6)+(2*7)+(1*9)=133
133 % 10 = 3
So 512176-79-3 is a valid CAS Registry Number.

512176-79-3Relevant articles and documents

Highly efficient palladium-catalyzed Suzuki-Miyaura reactions of potassium aryltrifluoroborates with 5-iodo-1,3-dioxin-4-ones in water: an approach to α-aryl-β-ketoesters

Vieira, Adriano S.,Cunha, Rodrigo L.O.R.,Klitzke, Clécio F.,Zukerman-Schpector, Julio,Stefani, Hélio A.

experimental part, p. 773 - 779 (2010/09/09)

The high efficient palladium-catalyzed Suzuki-Miyaura reactions of potassium aryltrifluoroborates 3 with 5-iodo-1,3-dioxin-4-ones 2a-b in water as only solvent in the presence of n-Bu4NOH as base is reported. The respective 5-aryl-1,3-dioxin-4-ones 4a-n were obtained in good to excellent yields. The catalyst system provides high efficiency at low load using electronically diverse coupling partners. The obtained 2,2,6-trimethyl-5-aryl-1,3-dioxin-4-ones were transformed into corresponding α-aryl-β-ketoesters 6 by reaction with an alcohol in the absence of solvent.

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