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要旨

Introduction
Selective hydrogenation of α,β-unsaturated aldehydes is one route to unsaturated alcohols with the double bond in allylic position, which are important intermediates for the production of fine chemicals, pharmaceuticals and perfumes. Supported Ag or Au are suitable catalysts, and more selective than e.g. Ru or Ni systems [1-3]. Little is known about the adsorption and activation of hydrogen and, e.g., acrolein on silver, and possible effects of the support. Here we use infrared spectroscopy to follow the interaction of the individual reactants with Ag supported on SiO2.
1. P. Claus, H. Hofmeister, J. Phys. Chem. B 103 (1999) 2766.
2. P. Claus, A. Brückner, C. Mohr, H. Hofmeister, J. Am. Chem. Soc. 122 (2000) 11430.
3. M. Lucas, P. Claus, Chem. Ing. Tech. 77 (2005) 110.