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18181-05-0

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18181-05-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 18181-05-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,1,8 and 1 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 18181-05:
(7*1)+(6*8)+(5*1)+(4*8)+(3*1)+(2*0)+(1*5)=100
100 % 10 = 0
So 18181-05-0 is a valid CAS Registry Number.

18181-05-0Relevant articles and documents

Manganese-Catalyzed anti-Selective Asymmetric Hydrogenation of α-Substituted β-Ketoamides

Ding, Kuiling,Han, Zhaobin,Wang, Zheng,Zhang, Linli

supporting information, p. 15565 - 15569 (2020/07/06)

A Mn-catalyzed diastereo- and enantioselective hydrogenation of α-substituted β-ketoamides has been realized for the first time under dynamic kinetic resolution conditions. anti-α-Substituted β-hydroxy amides, which are useful building blocks for the synthesis of bioactive molecules and chiral drugs, were prepared in high yields with excellent selectivity (up to >99 percent dr and >99 percent ee) and unprecedentedly high activity (TON up to 10000). The origin of the excellent stereoselectivity was clarified by DFT calculations.

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