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192815-75-1

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192815-75-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 192815-75-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,2,8,1 and 5 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 192815-75:
(8*1)+(7*9)+(6*2)+(5*8)+(4*1)+(3*5)+(2*7)+(1*5)=161
161 % 10 = 1
So 192815-75-1 is a valid CAS Registry Number.

192815-75-1Relevant articles and documents

Cycloadditions of chiral carbonyl ylides with imine dipolarophiles as a route to enantiomerically pure α-amino-β-hydroxy acids

Gan, Yu,Harwood, Laurence M.,Richards, Simon C.,Smith, Ian E.D.,Vinader, Victoria

body text, p. 723 - 725 (2009/09/25)

The preparation of enantiomerically pure threo-β-amino-α-hydroxy acids via 1,3-dipolar cycloadditions of imine dipolarophiles with the chiral isomuenchnone derived from (5R)-5-phenylmorpholin-3-one 1 is described. The cycloadducts were obtained with excellent diastereofacial- and exo-selectivity. Subsequent hydrolysis and chemoselective exocyclic amide cleavage afforded the threo-β-amino-α-hydroxy acids with recovery of the initial chiral auxiliary.

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