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55631-11-3

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55631-11-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 55631-11-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,6,3 and 1 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 55631-11:
(7*5)+(6*5)+(5*6)+(4*3)+(3*1)+(2*1)+(1*1)=113
113 % 10 = 3
So 55631-11-3 is a valid CAS Registry Number.

55631-11-3Downstream Products

55631-11-3Relevant articles and documents

α-Lithiated Aryl Benzyl Ethers: Inhibition of [1,2]-Wittig Rearrangement and Application to the Synthesis of Benzo[b]furan Derivatives

Velasco, Rocío,Feberero, Claudia,Sanz, Roberto

supporting information, p. 4416 - 4419 (2015/09/28)

The use of t-BuLi at low temperature selectively leads to α-lithiation of benzyl phenyl ether generating a stable organolithium, which can be efficiently trapped with a variety of selected electrophiles prior to suffering the expected [1,2]-Wittig rearrangement. In the case of (o-alkynyl)phenyl benzyl ethers, the intermediate α-aryloxyorganolithium undergoes an unexpected anti intramolecular carbolithiation reaction leading to functionalized benzo[b]furan derivatives.

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