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1402081-42-8

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1402081-42-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1402081-42-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,0,2,0,8 and 1 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1402081-42:
(9*1)+(8*4)+(7*0)+(6*2)+(5*0)+(4*8)+(3*1)+(2*4)+(1*2)=98
98 % 10 = 8
So 1402081-42-8 is a valid CAS Registry Number.

1402081-42-8Downstream Products

1402081-42-8Relevant articles and documents

Erratum: Enantioselective baeyer-villiger oxidation: Desymmetrization of meso cyclic ketones and kinetic resolution of racemic 2-arylcyclohexanones (Journal of the American Chemical Society (2012) 134 (17023-17026) DOI:10.1021/ja309262f)

Zhou, Lin,Liu, Xiaohua,Ji, Jie,Zhang, Yuheng,Hu, Xiaolei,Lin, Lili,Feng, Xiaoming

, p. 20208 - 20208 (2013/02/23)

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Enantioselective baeyer-villiger oxidation: Desymmetrization of meso cyclic ketones and kinetic resolution of racemic 2-arylcyclohexanones

Zhou, Lin,Liu, Xiaohua,Ji, Jie,Zhang, Yuheng,Hu, Xiaolei,Lin, Lili,Feng, Xiaoming

supporting information, p. 17023 - 17026 (2013/01/15)

Catalytic enantioselective Baeyer-Villiger (BV) oxidations of racemic and meso cyclic ketones were achieved in the presence of chiral N,N'-dioxide-Sc III complex catalysts. The BV oxidations of prochiral cyclohexanones and cyclobutanones afforded series of optically active μ- and γ-lactones, respectively, in up to 99% yield and 95% ee. Meanwhile, the kinetic resolution of racemic 2-arylcyclohexanones was also realized via an abnormal BV oxidation. Enantioenriched 3-aryloxepan-2-ones, whose formation is counter to the migratory aptitude, were obtained preferentially. Both the lactones and the unreacted ketones were obtained with high ee values.

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