41. This is one of the few reactions known of a homogenegeneous heteroarene hydrogenation . 42. But, alas, hydrogenation raises cholesterol levels. 43. Noyori built on that research to develop better and more general catalysts for hydrogenation . 44. The Kn�lker complex, for example, is a transfer hydrogenation catalyst for ketones. 45. Another one is Crabtree's catalyst, a homogeneous catalyst for hydrogenation reactions. 46. Further hydrogenation yields decahydronaphthalene or decalin ( ). 47. The same group applied the model to CO hydrogenation ( Fischer Tropsch synthesis ). 48. Cycloalkanes can be formed in a Diels Alder reaction followed by a catalytic hydrogenation . 49. Homogeneous catalysts are also used in asymmetric synthesis by the hydrogenation of prochiral substrates. 50. :Partial hydrogenation of a typical plant oil to a typical component of margarine.
