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133867-57-9

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133867-57-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 133867-57-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,8,6 and 7 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 133867-57:
(8*1)+(7*3)+(6*3)+(5*8)+(4*6)+(3*7)+(2*5)+(1*7)=149
149 % 10 = 9
So 133867-57-9 is a valid CAS Registry Number.

133867-57-9Relevant articles and documents

Asymmetric Radical Reaction in the Coordination Sphere. IV. Ruthenium(II)-Catalyzed Asymmetric Addition of Sulfonyl Chloride to 1-Phenylpropene

Kameyama, Masayuki,Kamigata, Nobumasa

, p. 648 - 650 (1989)

The asymmetric addition of methane- and p-toluenesulfonyl chloride to 1-phenylpropene catalyzed by Ru2Cl43 affords optically active 1:1 adducts, (+)-(1R,2RS)-1-chloro-2-methylsulfonyl-1-phenylpropane (2) and (+)-(1R,2RS)-1-chloro-1-phenyl-2-tosy

Zirconium cation coordination in the borohydride-mediated synthesis of β-hydroxy-N-alkoxylamines

Williams, David R,Benbow, John W,Sattleberg, Thomas R,Ihle, David C

, p. 8597 - 8601 (2007/10/03)

Hydride reductions of oxime ethers to hydroxylamine derivatives are facilitated by the participation of neighboring hydroxyl groups. Precomplexation with zirconium cation in ether-methylene chloride solutions is effective for selective C=N bond reduction. The course for stereochemical control is dictated by Lewis acid coordination complexes of E- and Z-oximino ethers which lead to the preferred diastereofacial delivery of external hydride.

Enantioselective Protonation of Samarium Enolates by a C2-Symmetric Chiral Diol

Takeuchi, Seiji,Ohira, Akiko,Miyoshi, Norikazu,Mashio, Hajime,Ohgo, Yoshiaki

, p. 1763 - 1780 (2007/10/02)

High enantioselectivity (up to 97percentee) have been achieved in the protonation of samarium enolates which were generated by SmI2-mediated cross-coupling reaction between unsymmetrical dialkylketene and allyl iodide, using, using a C2-symmetr

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