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162239-52-3

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162239-52-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 162239-52-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,2,2,3 and 9 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 162239-52:
(8*1)+(7*6)+(6*2)+(5*2)+(4*3)+(3*9)+(2*5)+(1*2)=123
123 % 10 = 3
So 162239-52-3 is a valid CAS Registry Number.

162239-52-3Downstream Products

162239-52-3Relevant articles and documents

Diastereoselective epoxidation of cyclohexene derivatives by dioxiranes generated in situ. Importance of steric and field effects

Yang, Dan,Jiao, Guan-Sheng,Yip, Yiu-Chung,Wong, Man-Kin

, p. 1635 - 1639 (2007/10/03)

In this paper, diastereoselective epoxidation of substituted cyclohexenes (substrates 1-7) by dioxiranes generated in situ from ketones and Oxone was systematically investigated. The results revealed that the diastereoselectivity was determined by the steric and field effects of both dioxiranes and substrates, and high diastereoselectivity can be achieved by tuning the ketone structure. Among the ketones tested, 12 and 19 gave the best diastereoselectivities.

Diastereoselectivity in the epoxidation of substituted cyclohexenes by dimethyldioxirane

Murray, Robert W.,Singh, Megh,Williams, Brian L.,Moncrieff, Hazel M.

, p. 1830 - 1841 (2007/10/03)

Three series of compounds based on the cyclohexene framework have been epoxidized by dimetbyldioxirane. A pronounced dependence of epoxide diastereoselectivity on substituent has been observed. In addition there is a solvent influence on this stereoselectivity. The results have been explained by invoking steric, H-bonding, and dipole - dipole influences on the epoxide stereochemistry.

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