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121560-18-7

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121560-18-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121560-18-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,5,6 and 0 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 121560-18:
(8*1)+(7*2)+(6*1)+(5*5)+(4*6)+(3*0)+(2*1)+(1*8)=87
87 % 10 = 7
So 121560-18-7 is a valid CAS Registry Number.

121560-18-7Relevant articles and documents

Diastereoselective ru-catalyzed cross-metathesis-dihydroxylation sequence. An efficient approach toward enantiomerically enriched syn-diols

Neisius, N. Matthias,Plietker, Bernd

, p. 3218 - 3227 (2008/09/19)

(Chemical Equation Presented) Sequential catalysis has evolved as a powerful concept within the past years and allows the more efficient use of catalytically active expensive transition metals in organic synthesis. In this paper we present the stereoselective cross-metathesis-dihydroxylation of various olefins with chiral auxiliary substituted acrylamides. The chiral information (i.e., the auxiliary) introduced in the metathesis reactions allows for a stereoselective subsequent RuO4-catalyzed dihydroxylation. The sequence is concluded by an unusual kinetic resolution of the diastereomeric diols obtained in the oxidation reaction. As a consequence a variety of structurally diverse enantiomerically enriched diols are obtained. To the best of our knowledge the results summarized in this paper represent the first highly efficient diastereoselective RuO4-catalyzed oxidation.

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