Chemoselective hydrogenation of aromatic ketones with Pt-based heterogeneous catalysts. Substituent effects

VIRGINIA VETERE; ANDREA B. MERLO; MÓNICA L. CASELLA

APPLIED CATALYSIS A-GENERAL

ELSEVIER SCIENCE BV

Lugar: Amsterdam; Año: 2015 vol. 491 p. 70 - 77

0926-860X

Catalytic reduction of aromatic ketones is an interesting reaction that leads to the obtaining of alco-hols. Some of these alcohols are employed as intermediaries to produce chemical fine compounds. The bimetallic catalysts are widely used in the chemoselective hydrogenation. The Surface Organometallic Chemistry on Metals (SOMC/M) is a methodology employed to obtain bimetallic systems. In the present work the hydrogenation of ketones derived from acetophenone has been studied. The aim was observe the effect on activity and selectivity to aromatic alcohols by the presence of substituents in the ring. The chemical characteristics of substituents groups could influence the way aromatic ketones are absorbed on the metallic surface. This fact can be explained by a combination of geometric and electronic effects.