Open AccessAldol Condensation of Citral with Acetone on Basic Solid Catalysts
Author(s) -
C. Noda,
G. P. Alt,
R. M. Werneck,
Cristiane A. Henriques,
J.L.F. Monteiro
Publication year - 1998
Publication title -
brazilian journal of chemical engineering/brazilian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.313
H-Index - 52
eISSN - 1678-4383
pISSN - 0104-6632
DOI - 10.1590/s0104-66321998000200004
Subject(s) - citral , aldol condensation , hydrotalcite , acetone , catalysis , chemistry , aldol reaction , condensation , homogeneous , organic chemistry , chromatography , thermodynamics , physics , essential oil
The catalytic performance of solids with basic properties, such as CaO, MgO and hydrotalcites, was evaluated in the aldol condensation of citral and acetone, the first step in the synthesis of ionones from citral. The best results were obtained with CaO and hydrotalcite with high conversions (98%) and selectivities (close to 70% for the main product) observed for both of the catalyst. Such pseudoionone yields were greater than those reported in the literature for the homogeneous reaction