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500891-82-7

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500891-82-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 500891-82-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,0,8,9 and 1 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 500891-82:
(8*5)+(7*0)+(6*0)+(5*8)+(4*9)+(3*1)+(2*8)+(1*2)=137
137 % 10 = 7
So 500891-82-7 is a valid CAS Registry Number.

500891-82-7Relevant articles and documents

Benzyl protection of phenols under neutral conditions: Palladium-catalyzed benzylations of phenols

Kuwano, Ryoichi,Kusano, Hiroki

supporting information; experimental part, p. 1979 - 1982 (2009/04/10)

Benzyl protection of phenols under neutral conditions was achieved by using a Pd(n3-C3H5)Cp-DPEphos catalyst. The palladium catalyst efficiently converted aryl benzyl carbonates into benzyl-protected phenols through the decarboxylative etherification. Alternatively, the nucleophilic substitution of benzyl methyl carbonates with phenols proceeded In the presence of the catalyst, yielding aryl benzyl ethers.

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