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132274-45-4

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132274-45-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 132274-45-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,2,2,7 and 4 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 132274-45:
(8*1)+(7*3)+(6*2)+(5*2)+(4*7)+(3*4)+(2*4)+(1*5)=104
104 % 10 = 4
So 132274-45-4 is a valid CAS Registry Number.

132274-45-4Relevant articles and documents

Oxidative [1,2]-Brook Rearrangements Exploiting Single-Electron Transfer: Photoredox-Catalyzed Alkylations and Arylations

Deng, Yifan,Liu, Qi,Smith, Amos B.

, p. 9487 - 9490 (2017/07/24)

Oxidative [1,2]-Brook rearrangements via hypervalent silicon intermediates induced by photoredox-catalyzed single-electron transfer have been achieved, permitting the formation of reactive radical species that can engage in alkylations and arylations.

Palladium-catalyzed fluoride-free cross-coupling of intramolecularly activated alkenylsilanes and alkenylgermanes: Synthesis of tamoxifen as a synthetic application

Matsumoto, Kenji,Shindo, Mitsuru

, p. 642 - 650 (2012/05/04)

We have demonstrated that intramolecular hypercoordination of a carboxylic acid is a powerful activation strategy for the palladium-catalyzed cross-coupling reaction of trialkyl(vinyl)silanes and trialkyl(vinyl)germanes under fluoride-free conditions. Z-β-Trialkylsilyl- and Z-β- trialkylgermylacrylic acids, synthesized stereoselectively by olefination with ynolates, are highly stable and useful reagents for cross-coupling with a variety of aryl iodides to provide tetrasubstituted olefins possessing different carbon substituents in a stereocontrolled and diversity-oriented manner. An application to a stereoselective synthesis of (Z)-tamoxifen is also reported. Copyright

Enantioselective synthesis of a-hydroxysilanes by bioreduction of aroyltrimcthylsilanes

Patrocinio, Amauri F.,Correa Jr., Ivan R.,Moran, Paulo J. S.

, p. 3133 - 3137 (2007/10/03)

Aromatic acylsilanes [Ar-CO-SiMe3; Ar = C6H5,4-ClC6H4, 2-, 3- and 4-OMeC6H4, 3,4-(OMe)2C6H3 and 3,4-OCH2OC6H3] were reduced by baker's yeast to optically active a-silyl alcohols in 20-70% yield and 43-88% ee. Comments are made on the influence of silicon in this bioreduction reaction. The Royal Society of Chemistry 1999.

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