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132658-89-0

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132658-89-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 132658-89-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,2,6,5 and 8 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 132658-89:
(8*1)+(7*3)+(6*2)+(5*6)+(4*5)+(3*8)+(2*8)+(1*9)=140
140 % 10 = 0
So 132658-89-0 is a valid CAS Registry Number.

132658-89-0Relevant articles and documents

Asymmetric synthesis of chiral cycloalkenone derivatives via palladium catalysis

Trost, Barry M.,Masters, James T.,Lumb, Jean-Philip,Fateen, Dahlia

, p. 1354 - 1360 (2014/03/21)

The palladium-catalyzed oxidative desymmetrization of meso-dibenzoates yields γ-benzoyloxy cycloalkenones in good yields and with excellent levels of enantioselectivity. These compounds serve as precursors to a broad range of substituted cycloalkenones, including well-established synthetic building blocks and elaborated cycloalkanone derivatives. The ability to prepare both enantiomers of the oxidative desymmetrization products enables a unified strategy toward stereochemically diverse epoxyquinoid natural products.

Facile biocatalytic syntheses of optically active 4-hydroxycyclohex-2-enone and 4-benzylthiacyclopent-2-enone

Morgan, Ben S.,Hoenner, Dorothee,Evans, Paul,Roberts, Stanley M.

, p. 2807 - 2809 (2007/10/03)

Novozyme 435 (Candida antarctica Lipase B) effects the kinetic resolution of both 3-benzylthia-4-hydroxycyclopentanone and its six-membered ring analogue, providing a novel route to both enantiomers of 4-benzylthiacyclopent-2-enone and the two enantiomers of 4-hydroxycyclohex-2- enone, all in a state of very high optical purity.

ASYMMETRIC SYNTHESIS OF (R) AND (S)-4-HYDROXY-2-CYCLOHEXENONE AND DERIVATIVES

Carreno, M. Carmen,Ruano, Jose L. Garcia,Garrido, Mercedes,Ruiz, M. Pilar,Solladie, Guy

, p. 6653 - 6656 (2007/10/02)

The asymmetric syntheses of both enantiomers of 4-hydroxy-2-cyclohexenone and their O-acyl and O-benzyl derivatives are reported.DIBAL and ZnCl2/DIBAL stereoselective reductions of the ketosulfoxides resulting in the sulfinylation of 1,4-cyclohexanedione

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