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875838-68-9

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875838-68-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 875838-68-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,5,8,3 and 8 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 875838-68:
(8*8)+(7*7)+(6*5)+(5*8)+(4*3)+(3*8)+(2*6)+(1*8)=239
239 % 10 = 9
So 875838-68-9 is a valid CAS Registry Number.

875838-68-9Downstream Products

875838-68-9Relevant articles and documents

Magnetically recyclable nano copper/chitosan in O-arylation of phenols with aryl halides

Mousavi Mashhadi, Seyed Ali,Kassaee, Mohamad Z.,Eidi, Esmaiel

, (2019/07/04)

Interaction of chitosan (CS) with Fe3O4, followed by embedding Cu nanoparticles (NPs) on the magnetic surface through adsorption of Cu2+, and its reduction to Cuo via NaBH4, offers a reusable efficient catalyst (Fe3O4/CS-Cu NPs) that is employed in cross-coupling reactions of aryl halides with phenols, which affords the corresponding diaryl ethers, with good to excellent yields. The catalyst is completely recoverable from the reaction mixture by using an external magnet. It can be reused four times, without significant loss in its catalytic activity.

Para-Selective Cu-Catalyzed C-H Aryloxylation of Electron-Rich Arenes and Heteroarenes

Sokolovs, Igors,Suna, Edgars

, p. 371 - 379 (2016/01/25)

Cu-catalyzed reaction of phenols with electron-rich arene or heteroarene ligands of unsymmetrical diaryl-λ3-iodanes is a key step in the developed one-pot two-step method for intermolecular para-selective C-H aryloxylation of heteroarenes and arenes.

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