Small-Ring Compounds. VII. Physical and Chemical Properties of Cyclopropyl, Cyclobutyl, Cyclopentyl and Cyclohexyl Derivatives

Abstract

The physical and chemical properties of some cycloalkyl derivatives have been determined as a function of ring size. The properties which have been studied include: ionization constants and reaction rate constants with diphenyldiazomethane of cycloalkanecarboxylic acids ; ionization constants of cycloalkylamines and cycloalkyldimethylamines; dipole moments of cycloalkyl bromides ; and intensities of infrared C-H stretching frequencies of cycloalkyl chlorides and bromides. On the whole, the properties showed reasonably smooth gradations with ring size which could be correlated qualitatively with current structural theories of small-ring compounds.

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