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

Intramolecular Michael addition of 1-acyl-1'-cinnamoylferrocenes. II. Kinetics

P. Elečko

Institut für organische Chemie der Naturwissenschaftlichen Fakultät an der Komenský-Universität, Bratislava 1

Abstract: The effect of pH group substituents on the intramol. Michael addn. of 1-(p-X-phenylacetlyl)- and 1-(m-X-phenylacetyl)-acetyl)-1'-cinnamoylferrocenes was described. The reaction is first order and the rate is dependent on the substituent. From the correlation of the log K and Hammett σ const., the following ρ values were detd.: 1.82 at 25°, 1.87 at 30°, 1.79 at 35° and 1.70 at 40°. The activation energy values are relatively slightly dependent of the substituent.

Full paper in Portable Document Format: 233a212.pdf (in German)

Chemical Papers 23 (3) 212–218 (1969)