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111015-21-5

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111015-21-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 111015-21-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,0,1 and 5 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 111015-21:
(8*1)+(7*1)+(6*1)+(5*0)+(4*1)+(3*5)+(2*2)+(1*1)=45
45 % 10 = 5
So 111015-21-5 is a valid CAS Registry Number.

111015-21-5Relevant articles and documents

UTILISATION DE LA SYNTHESE ATROLACTIQUE POUR L'EVALUATION DE L'EFFICACITE D'INDUCTEURS DE SYNTHESE ASYMETRIQUE.

Hassine, B. Ben,Gorsane, M.,Geerts-Evrard, F.,Pecher, J.,Martin, R. H.,Castelet, D.

, p. 557 - 566 (2007/10/02)

Atrolactic syntheses have been carried out to evaluate the potentiality, in asymmetric syntheses, of chiral inducers.The (dl)-hydroxyhelicenes 1, 2, the (dl) sec. alcohols 3-12 and the (dl)phenolic binaphtyl compound 15 have been used as inducers.The d.e. are collected in table I (6-100percent).The atrolactic asymmetric synthesis has also been carried out using three optically active inducers, namely : (-)-quinine 13, (-)-10,11-dihydroquinine 14, and R(-)-2,2,2-trifluoro-1-(9-anthryl)ethanol 6.Diastereometric and enantiomeric excesses equal or greater than 88percent have been obtained in six cases out of sixteen : (dl)-2-hydroxyheptahelicene 1 (d.e = 100percent +/-2), (1-naphtyl)-(9-anthryl)methanol 3 (d.e = 90percent) ; 2,2,2-trichloro-1-(9-anthryl)ethanol 7 (d.e = 100percent +/-2), 2,2,2-tribromo-1-(9-anthryl)ethanol 8 (d.e = 100percent +/-2), (-)-quinine 13 (e.e = 95.5percent), and (-)-2,2,2-trifluoro-1-(9-anthryl)ethanol 6 (e.e = 88percent).

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