ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Utilization of ultrasound for the synthesis of 4-substituted 2,2,6,6-tetramethylpiperidinyloxyls

V. Kaliská, Š. Toma, and A. Tkáč

Department of Organic Chemistry, Faculty of Natural Sciences, Comenius University, CS-842 15 Bratislava

Abstract: Sonication facilitates the synthesis and accelerates the yields of 4-sub­stituted 2,2,6,6-tetramethylpiperidinyloxyls. This effect is highly pronoun­ced on the substrates with a long lipophilic chain in position 4. The influence of solvent and temperature on the yield of the reaction has been studied. H₂0₂ oxidation of the piperidine derivatives promoted by ultrasonic irradiation has been successful also without catalyst.

Full paper in Portable Document Format: 422a243.pdf

Chemical Papers 42 (2) 243–248 (1988)