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113543-33-2

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113543-33-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 113543-33-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,3,5,4 and 3 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 113543-33:
(8*1)+(7*1)+(6*3)+(5*5)+(4*4)+(3*3)+(2*3)+(1*3)=92
92 % 10 = 2
So 113543-33-2 is a valid CAS Registry Number.

113543-33-2Relevant articles and documents

ASYMMETRIC HALOGENATION OF CHIRAL IMIDE ENOLATES. A GENERAL APPROACH TO THE SYNTHESIS OF ENANTIOMERICALLY PURE α-AMINO ACIDS.

Evans, David A.,Ellman, Jon A.,Dorow, Roberta L.

, p. 1123 - 1126 (2007/10/02)

The chiral N-acyl oxazolidones 2, as the derived dibutyl boron enolates, have been demonstrated to undergo diastereoselective bromination and subsequent azide displacement to give the α-azido carboximides 4a (5 cases).These adducts may be hydrolyzed under mild conditions to the enantiomerically pure α-azido carboxylic acids 5a.

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