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139192-50-0

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139192-50-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139192-50-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,1,9 and 2 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 139192-50:
(8*1)+(7*3)+(6*9)+(5*1)+(4*9)+(3*2)+(2*5)+(1*0)=140
140 % 10 = 0
So 139192-50-0 is a valid CAS Registry Number.

139192-50-0Relevant articles and documents

Efficient synthesis of new chiral 1,2-benzothiazin-3-one 1,1-dioxide derivatives via lateral lithiation of 3-N-mesitylenesulfonyl-1,3-oxazolidin-2-ones

Ould Aliyenne, Ahmed,Kra?em, Jamil,Kacem, Yakdhane,Ben Hassine, Béchir

, p. 1473 - 1475 (2008/09/18)

Chiral 3-N-mesitylenesulfonyl-1,3-oxazolidin-2-ones 4a-e derived from (l)- and (d)-amino acids 1a-e undergo lateral lithiation with lithium diisopropylamide and TMEDA in anhydrous THF to provide new optically-active 1,2-benzothiazin-3-one 1,1-dioxide deri

A Thermodynamic Preference of Chiral N-Methanesulfonyl and N-Arenesulfonyl 2,3-cis-3-Alkyl-2-Vinylaziridines over Their 2,3-Trans-Isomers: Useful Palladium(0)-Catalyzed Equilibration Reactions for the Synthesis of (E)-Alkene Dipeptide Isosteres

Ibuka, Toshiro,Mimura, Norio,Aoyama, Hiroshi,Akaji, Masako,Ohno, Hiroaki,Miwa, Yoshihisa,Taga, Tooru,Nakai, Kazuo,Tamamura, Hirokazu,Fujii, Nobutaka,Yamamoto, Yoshinori

, p. 999 - 1015 (2007/10/03)

Palladium(0)-catalyzed reactions of N-methanesulfonyl- or N-(arenesulfonyl)-3-alkyl-2-vinylaziridines reveal that 2,3-cis-isomers are more stable than the corresponding 2,3-trans-isomers in accord with ab initio calculations. A highly stereoselective synthetic route to (E)-alkene dipeptide isosteres having desired stereochemistries from 2,3-cis-3-isobutyl-2-vinylaziridine by the use of organocopper chemistry is also presented.

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