Catalytic Ketonisation Over Oxide Catalysts. Part IX*. Single Step Synthesis of Aliphatic Saturated and Undsaturated C11-C13 Ketones from Carboxylic Acids

Abstract

Metameric undecan-x-ones (x = 2-6), dodecan-y-ones (y = 2-5), tridecan-z-ones (z = 4-7) and two unsaturated aliphatic ketones were prepared by vapor phase ketonisation of the appropriate monocarboxylic acids in the presence of 20 wt% MnO 2 /Al 2 O 3 catalyst under flow conditions. The ketones were obtained in yields between 48 and 89% in a multigram scale (80-250 g). Their physical and spectral data have been determined.