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28547-49-1

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28547-49-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 28547-49-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,5,4 and 7 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 28547-49:
(7*2)+(6*8)+(5*5)+(4*4)+(3*7)+(2*4)+(1*9)=141
141 % 10 = 1
So 28547-49-1 is a valid CAS Registry Number.

28547-49-1Downstream Products

28547-49-1Relevant articles and documents

Silver-Catalyzed C(sp3)-H Chlorination

Ozawa, Jun,Kanai, Motomu

, p. 1430 - 1433 (2017)

A silver-catalyzed chlorination of benzylic, tertiary, and secondary C(sp3)-H bonds was developed. The reaction proceeded with as low as 0.2 mol % catalyst loading at room temperature under air atmosphere with synthetically useful functional group compatibility. The regioselectivity and reactivity tendencies suggest that the chlorination proceeded through a radical pathway, but an intermediate alkylsilver species cannot be ruled out.

Kinetic resolution of primary alcohols having remote stereogenic centers: lipase mediated kinetic resolution of (±)-3-chloro-3-arylpropanols

Isleyen, Alper,Tanyeli, Cihangir,Dogan, Oezdemir

, p. 1561 - 1567 (2007/10/03)

Kinetic resolutions of (±)-3-chloro-3-arylpropanols by lipase mediated acetylation are described for the first time. Acetylation with CCL provided the best enantioselectivity amongst the enzymes used. Enantiomerically enriched products were obtained with up to 78% ee after two successive lipase-catalyzed acetylations. Different substituents on the aromatic ring and bromide, instead of chloride, on the substrates were found to have no drastic influence on the enantioselectivity of the reaction.

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