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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 32, Number 7
BKCSDE 32(7)
July 20, 2011

Title	Correlation of the Rates of Solvolysis of 1- and 2- Naphthyl Chloroformates Using the Extended Grunwald-Winstein Equation
Author	Doo Hwan Moon, Mi Hye Seong, Jin Burm Kyong, * Yelin Lee, Yong-Woo Lee *
Keywords	Naphthyl chloroformates, Grunwald-Winstein equation, Addition-Elimination, Solvolysis
Abstract	The specific rates of solvolysis of 1- naphthyl chloroformate (1-NaphOCOCl, 1) and 2-naphthyl chloroformate (2-NaphOCOCl, 2) have been determined in a wide range of solvents at 2.0 and 10.0 oC. These give a satisfactory correlation over the full range of solvents when the extended (two-term) Grunwald-Winstein equation is applied. The sensitivities (l and m-values) to changes in solvent nucleophilicity (NT) and solvent ionizing power (YCl) are similar to those reported previously for solvolysis of phenyl chloroformate, which has been suggested to proceed through an addition-elimination mechanism with the addition step being rate determining. For four representative solvents, studies were made at several temperatures and activation parameters determined. These observations were also compared with those previously reported for phenyl chloroformates and naphthoyl chlorides.
Page	2413 - 2417
Full Text	PDF

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