科研之友
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摘要
The chemoselective dehydrogenation of glycerol was catalyzed by organoiridium derivatives of the type [HIr(cod)L] (cod = 1,5-cyclooctadiene; L = Pr(n)-N(CH(2)CH(2)PPh(2))(2), Et(2)NCH(2)CH(2)N(CH(2)CH(2)PPh(2))(2), o-Me(2)NC(6)H(4)PPh(2)) using hydrogen acceptors such as acetophenone, cyclohexanone, styrene and benzaldehyde. The catalytic reactions were performed in the absence of a basic cocatalyst in order to avoid decomposition of the desired product, i.e. dihydroxyacetone. Acceptor-less dehydrogenation was also observed either in the absence of a hydrogen acceptor, or as a parallel route, when the reaction was performed in the presence of acetophenone.
- 出版日期2010
