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Towards a Practical Development of Light‐Driven Acceptorless Alkane Dehydrogenation
Author(s) -
Chowdhury Abhishek Dutta,
Weding Nico,
Julis Jennifer,
Franke Robert,
Jackstell Ralf,
Beller Matthias
Publication year - 2014
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201402287
Subject(s) - dehydrogenation , alkane , chemistry , catalysis , heterogeneous catalysis , organic chemistry , combinatorial chemistry , raw material , selectivity , photochemistry
The efficient catalytic dehydrogenation of alkanes to olefins is one of the most investigated reactions in organic synthesis. In the coming years, an increased supply of shorter‐chain alkanes from natural and shale gas will offer new opportunities for inexpensive carbon feedstock through such dehydrogenation processes. Existing methods for alkane dehydrogenation using heterogeneous catalysts require harsh reaction conditions and have a lack of selectivity, whereas homogeneous catalysis methods result in significant waste generation. A strong need exists for atom‐efficient alkane dehydrogenations on a useful scale. Herein, we have developed improved acceptorless catalytic systems under optimal light transmittance conditions using trans ‐[Rh(PMe 3 ) 2 (CO)Cl] as the catalyst with different additives. Unprecedented catalyst turnover numbers are obtained for the dehydrogenation of cyclic and linear (from C 4 ) alkanes and liquid organic hydrogen carriers. These reactions proceed with unique conversion, thereby providing a basis for practical alkane dehydrogenations.