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1239569-26-6

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1239569-26-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1239569-26-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,9,5,6 and 9 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1239569-26:
(9*1)+(8*2)+(7*3)+(6*9)+(5*5)+(4*6)+(3*9)+(2*2)+(1*6)=186
186 % 10 = 6
So 1239569-26-6 is a valid CAS Registry Number.

1239569-26-6Downstream Products

1239569-26-6Relevant articles and documents

Neopentylglycolborylation of ortho -substituted aryl halides catalyzed by NiCl2-Based mixed-ligand systems

Moldoveanu, Costel,Wilson, Daniela A.,Wilson, Christopher J.,Leowanawat, Pawaret,Resmerita, Ana-Maria,Liu, Chi,Rosen, Brad M.,Percec, Virgil

, p. 5438 - 5452 (2010)

NiCl2-based mixed-ligand systems were shown to be very effective catalysts for the neopentylglycolborylation of aryl iodides, bromides, and chlorides bearing electron-rich and electron-deficient ortho-substituents. Although NiCl2-based single-ligand catalytic systems were able to mediate neopentylglycolborylation of selected substrates, they were not as effective for all substrates, highlighting the value of the mixed-ligand concept. Optimization of the Ni(II)-catalyzed neopentylglycolborylation of 2-iodoanisole and methyl 2-iodobenzoate demonstrated that, while the role of ligand and coligand in the conversion of Ni(II) precatalyst to Ni(0) active catalyst cannot be ignored, a mixed-ligand complex is likely present throughout the catalytic cycle. In addition, protodeborylation and hydrodehalogenation were demonstrated to be the predominant side reactions of Ni(II)-catalyzed borylation of ortho-substituted aryl halides containing the electron-deficient carboxylate substituents. Ni(II) complexes in the presence of H2O and Ni(0) are responsible for the catalysis of these side reactions.

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