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202347-80-6

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202347-80-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 202347-80-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,2,3,4 and 7 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 202347-80:
(8*2)+(7*0)+(6*2)+(5*3)+(4*4)+(3*7)+(2*8)+(1*0)=96
96 % 10 = 6
So 202347-80-6 is a valid CAS Registry Number.

202347-80-6Downstream Products

202347-80-6Relevant articles and documents

Synthesis of enantiomerically pure α-amino acids via chemo- and diastereoselective alkylation of (5S)-5-phenyl-5,6-dihydro-2H-1,4-oxazin-2-one

Harwood, Laurence M.,Tyler, Simon N. G.,Anslow, A. Susan,MacGilp, Iain D.,Drew, Michael G. B.

, p. 4007 - 4010 (1997)

(5S)-5-Phenyl-5,6-dihydro-2H-1,4-oxazin-2-one 2 undergoes Lewis acid-mediated chemo- and diastereoselective nucleophilic addition of Grignard reagents to furnish adducts 3 which can be dismantled to allow ready access to enantiomerically pure (S)-α-amino acids 4.

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