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57558-39-1

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57558-39-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 57558-39-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,5,5 and 8 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 57558-39:
(7*5)+(6*7)+(5*5)+(4*5)+(3*8)+(2*3)+(1*9)=161
161 % 10 = 1
So 57558-39-1 is a valid CAS Registry Number.

57558-39-1Downstream Products

57558-39-1Relevant articles and documents

Copper-catalyzed N-arylation of 2-oxazolidinones. An expeditious route to toloxatone

Cacchi, Sandro,Fabrizi, Giancarlo,Goggiamani, Antonella

, p. 505 - 512 (2003)

3-Aryl-2-oxazolidinones are obtained in excellent yields through the copper-catalyzed N-arylation of 2-oxazolidinones with a variety of aryl iodides. With aryl halides containing both iodo and bromo substituents, a high C-I/C-Br selectivity can be achieved. The procedure has been successfully applied to the preparation of a key intermediate in the synthesis of linezolid and to develop an expeditious route to toloxatone.

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