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130343-63-4

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130343-63-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 130343-63-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,0,3,4 and 3 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 130343-63:
(8*1)+(7*3)+(6*0)+(5*3)+(4*4)+(3*3)+(2*6)+(1*3)=84
84 % 10 = 4
So 130343-63-4 is a valid CAS Registry Number.

130343-63-4Relevant articles and documents

Catalytic Aldehyde and Alcohol Arylation Reactions Facilitated by a 1,5-Diaza-3,7-diphosphacyclooctane Ligand

Isbrandt, Eric S.,Nasim, Amrah,Newman, Stephen G.,Zhao, Karen

supporting information, p. 14646 - 14656 (2021/09/18)

We report a catalytic method to access secondary alcohols by the coupling of aryl iodides. Either aldehydes or alcohols can be used as reaction partners, making the transformation reductive or redox-neutral, respectively. The reaction is mediated by a Ni catalyst and a 1,5-diaza-3,7-diphosphacyclooctane. This P2N2ligand, which has previously been unrecognized in cross-coupling and related reactions, was found to avoid deleterious aryl halide reduction pathways that dominate with more traditional phosphines and NHCs. An interrupted carbonyl-Heck type mechanism is proposed to be operative, with a key 1,2-insertion step forging the new C-C bond and forming a nickel alkoxide that may be turned over by an alcohol reductant. The same catalyst was also found to enable synthesis of ketone products from either aldehydes or alcohols, demonstrating control over the oxidation state of both the starting materials and products.

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