Kinetics of elimination reactions of cumyl chloride and its substituted derivatives in acetonitrile
A cent per cent unimolecular elimination reaction of tertiary aralkyl halides in acetonitrile is being reported for the first time. The reversibility in the rate determining step can be prevented by the addition of a weak base like pyridine in cumyl chloride and its α- and p-substituted derivatives. A plot of logarithmic rate constants of α-substituted cumyl chloride against Charton's steric parameter 'v' gives a linear relationship.
Balachandran,Santhosh Kumar
p. 1731 - 1734
(2007/10/03)
Interpretation of retention indices in gas chromatography for establishing structures of isomeric products of alkylarenes radical chlorination
By an example of previously uncharacterized products obtained by alkylarenes radical chlorination was demonstrated that combination of various interpretation methods applied to the retention indices (RI) in the gas chromatography on the standard nonpolar phases (comparison of RI of products and initial compounds, characteristics of succession of the chromatographic elution of the structural isomers with the use of estimation of molecular dynamic parameters, application of the additive schemes to RI calculation, and using of structural analogy CH3?Cl for testing the results obtained) permitted unambiguous identification of the structure even without data of mass spectrometry.
Zenkevich
p. 270 - 280
(2007/10/03)
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