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226712-66-9

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226712-66-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 226712-66-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,6,7,1 and 2 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 226712-66:
(8*2)+(7*2)+(6*6)+(5*7)+(4*1)+(3*2)+(2*6)+(1*6)=129
129 % 10 = 9
So 226712-66-9 is a valid CAS Registry Number.

226712-66-9Downstream Products

226712-66-9Relevant articles and documents

Synthesis of Highly Substituted Arenes via Cyclohexadiene-Alkene C-H Cross Coupling and Aromatization

Bhunia, Anup,Studer, Armido

, p. 1213 - 1217 (2018/02/14)

The development of a cross-coupling method for the regioselective β-alkenylation of 2,5-cyclohexadiene carboxylic acid derivatives to form ortho-alkenylarenes through in situ decarboxylation and aromatization is described. The carboxylic acid functionality is used as a traceless directing group for efficient and mild β-alkenylation. The modular sequence comprises a reductive Birch α-alkylation, ionic ?-alkylation followed by a Pd-catalyzed decarboxylative β-alkenylation with subsequent aromatization resulting in an overall three-fold ipso-para-ortho functionalization of readily accessed benzoic acid derivatives. Efficient synthesis of various alkyl-alkenylarenes under mild conditions in moderate to excellent yields is presented.

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