TANDEM TRANSFER HYDROGENATION AND OLIGOMERIZATION FOR HYDROCARBON PRODUCTION
申请人:California Institute of Technology
公开号:US20140200376A1
公开(公告)日:2014-07-17
The disclosure provides for hydrocarbon production by hydrogenation and oligomerizaton and, more particularly, to catalysis of alkanes and alkenes by a tandem transfer hydrogenation and oligomerization.
Upgrading Light Hydrocarbons via Tandem Catalysis: A Dual Homogeneous Ta/Ir System for Alkane/Alkene Coupling
作者:David C. Leitch、Yan Choi Lam、Jay A. Labinger、John E. Bercaw
DOI:10.1021/ja405191a
日期:2013.7.17
Light alkanes and alkenes are abundant but are underutilized as energy carriers because of their high volatility and low energy density. A tandem catalytic approach for the coupling of alkanes and alkenes has been developed in order to upgrade these light hydrocarbons into heavier fuel molecules. This process involves alkane dehydrogenation by a pincer-ligated iridium complex and alkene dimerization by a Cp*TaCl2(alkene) catalyst. These two homogeneous catalysts operate with up to 60/30 cooperative turnovers (Ir/Ta) in the dimerization of 1-hexene/n-heptane, giving C-13/C-14 products in 40% yield. This dual system can also effect the catalytic dimerization of n-heptane (neohexene as the H-2 acceptor) with cooperative turnover numbers of 22/3 (Ir/Ta).
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