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168297-97-0

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168297-97-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 168297-97-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,8,2,9 and 7 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 168297-97:
(8*1)+(7*6)+(6*8)+(5*2)+(4*9)+(3*7)+(2*9)+(1*7)=190
190 % 10 = 0
So 168297-97-0 is a valid CAS Registry Number.

168297-97-0Relevant articles and documents

Stereoselective Alkylation of Chiral Titanium(IV) Enolates with tert-Butyl Peresters

Pérez-Palau, Marina,Sanosa, Nil,Romea, Pedro,Urpí, Fèlix,López, Rosa,Gómez-Bengoa, Enrique,Font-Bardia, Mercè

supporting information, p. 8852 - 8856 (2021/11/17)

Here, we present a new stereoselective alkylation of titanium(IV) enolates of chiral N-acyl oxazolidinones with tert-butyl peresters from Cα-branched aliphatic carboxylic acids, which proceeds through the decarboxylation of the peresters and the subsequent formation of alkyl radicals to produce the alkylated adducts with an excellent diastereoselectivity. Theoretical calculations account for the observed reactivity and the outstanding stereocontrol. Importantly, the resultant compounds can be easily converted into ligands for asymmetric and catalytic transformations.

A simple method for asymmetric trifluoromethylation of N-acyl oxazolidinones via Ru-catalyzed radical addition to zirconium enolates

Herrmann, Aaron T.,Smith, Lindsay L.,Zakarian, Armen

supporting information; experimental part, p. 6976 - 6979 (2012/06/15)

A Ru-catalyzed direct thermal trifluoromethylation and perfluoroalkylation of N-acyloxazolidinones has been developed. The reaction is experimentally simple and requires inexpensive reagents while providing good yields of products with good levels of stereocontrol. Preliminary studies have shown notable compatibility with functional groups, aromatics, and certain heteroaromatic substituents. The described method provides a useful alternative for the synthesis of fluorinated materials in an experimentally convenient manner.

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