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1231253-32-9

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1231253-32-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1231253-32-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,1,2,5 and 3 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1231253-32:
(9*1)+(8*2)+(7*3)+(6*1)+(5*2)+(4*5)+(3*3)+(2*3)+(1*2)=99
99 % 10 = 9
So 1231253-32-9 is a valid CAS Registry Number.

1231253-32-9Downstream Products

1231253-32-9Relevant articles and documents

β-fluoroamphetamines via the stereoselective synthesis of benzylic fluorides

Cresswell, Alexander J.,Davies, Stephen G.,Lee, James A.,Roberts, Paul M.,Russell, Angela J.,Thomson, James E.,Tyte, Melloney J.

, p. 2936 - 2939 (2010)

A range of substituted aryl epoxides undergo efficient ring-opening hydrofluorination upon treatment with 0.33 equiv of BF3-OEt 2 in CH2Cl2 at -20 -°C to give the corresponding syn-fluorohydrins, consistent with a mechanism involving a stereoselective SN1-type epoxide ring-opening process. The benzylic fluoride products of these reactions are valuable templates for further elaboration, as demonstrated by the preparation of a range of aryl-substituted β-fluoroamphetamines.

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