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918148-53-5

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918148-53-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 918148-53-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,8,1,4 and 8 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 918148-53:
(8*9)+(7*1)+(6*8)+(5*1)+(4*4)+(3*8)+(2*5)+(1*3)=185
185 % 10 = 5
So 918148-53-5 is a valid CAS Registry Number.

918148-53-5Relevant articles and documents

Asymmetric Palladium-Catalyzed Oxycarbonylation of Terminal Alkenes: Efficient Access to β-Hydroxy Alkylcarboxylic Acids

Tian, Bing,Li, Xiang,Chen, Pinhong,Liu, Guosheng

, p. 14881 - 14886 (2021)

A novel PdII-catalyzed enantioselective oxycarbonylation of alkenes has been established. The ligand with an ethyl group at the C-6 position of Pyox plays a significant role in the intermolecular oxypalladation process, leading to high reactivity and excellent enantioselective control. Compared to the conventional methods, the reaction itself features alkenes as easily prepared starting materials, mild and operationally simple reaction conditions, and insensitivities to air and water. Moreover, this method allows for broad alkene substrate scope, excellent regio- and enantioselectivities, scalabilities and a wide array of applications, and provides a useful route for the convenient and straightforward synthesis of chiral β-hydroxy alkylcarboxylic acids/esters.

Chemoenzymatic synthesis of enantiomerically enriched kavalactones

Kamal, Ahmed,Krishnaji, Tadiparthi,Khanna, G.B. Ramesh

, p. 8657 - 8660 (2007/10/03)

Lipase-mediated kinetic resolution of methyl-3-hydroxy-5-phenylpentanoate and (6E)-ethyl 5-hydroxy-3-oxo-7-phenylhept-6-enoate is described in high enantiomeric excess and good yields. The effect of different lipases in different solvents has been screened using different acylating agents. This protocol has been extended for the preparation of enantiomerically pure biologically important kavalactones.

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