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1219118-23-6

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1219118-23-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1219118-23-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,9,1,1 and 8 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1219118-23:
(9*1)+(8*2)+(7*1)+(6*9)+(5*1)+(4*1)+(3*8)+(2*2)+(1*3)=126
126 % 10 = 6
So 1219118-23-6 is a valid CAS Registry Number.

1219118-23-6Downstream Products

1219118-23-6Relevant articles and documents

Direct Synthesis of Polyaryls by Consecutive Oxidative Cross-Coupling of Phenols with Arenes

Dyadyuk, Alina,Sudheendran, Kavitha,Vainer, Yulia,Vershinin, Vlada,Shames, Alexander I.,Pappo, Doron

, p. 4324 - 4327 (2016)

A bioinspired iron-catalyzed consecutive oxidative cross-coupling reaction between a single phenolic unit and nucleophilic arenes was developed. This sustainable transformation offers a selective synthetic strategy for the preparation of complex polyaryl compounds directly from readily available phenols. With the aid of electron paramagnetic resonance spectroscopy, it was demonstrated that the groups ortho to the phenolic functionality (whether hydrogen, methyl, or methoxy) direct the regioselectivity (ortho, para, or meta via dienone-phenol rearrangement) and chemoselectivity (C-C coupling or C-O coupling) in this multistep process.

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