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544466-52-6

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544466-52-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 544466-52-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,4,4,4,6 and 6 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 544466-52:
(8*5)+(7*4)+(6*4)+(5*4)+(4*6)+(3*6)+(2*5)+(1*2)=166
166 % 10 = 6
So 544466-52-6 is a valid CAS Registry Number.

544466-52-6Relevant articles and documents

Palladium-catalyzed Suzuki cross-coupling of aryl halides with aryl boronic acids in the presence of glucosamine-based phosphines

Kolodziuk, Robert,Penciu, Alexandra,Tollabi, Mustapha,Framery, Eric,Goux-Henry, Catherine,Iourtchenko, Alexander,Sinou, Denis

, p. 384 - 391 (2003)

Carbohydrate-substituted phosphines are easily obtained in quite good yields by coupling of protected or non-protected d-glucosamine with the corresponding diphenylphosphino acid. These neutral ligands, in association with palladium acetate, are very active catalysts in the Suzuki cross-coupling reaction. The polyhydroxy phosphines are more active than the peracetylated phosphines. The process tolerates electron-rich as well as electron-poor substituents. Excellent turnovers, up to 97 000 are observed.

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