Importance

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Abstract

An organic compound having a nitroxide free radial of the formula (2) is prepared by reacting a cyclic secondary amine having a steric hindrance of the formula (1) with a peroxide in the presence of at least 1 part by weight of an organic compound having a cyano group per 1 part by weight of the cyclic secondary amine having the steric hindrance. In the formulae (1) and (2), T is a methylene group, an ethylene group, an oxygen atom or a methyleneoxy group; R is an alkyl group, an aralkyl group, an aryl group, a cycloalkyl group, an alkoxy group, an acyl group an acyloxy group, an amino group, a hydroxyl group or a heterocyclic group; R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are the same or different and each an alkyl group or an aryl group, or R.sup.1 and R.sup.2 and/or R.sup.3 and R.sup.4 together form a tetramethylene group or a pentamethylene group; and n is an integer of 0 to 6. ##STR1##

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First Claim