Iridium-mediated asymmetric hydrogenation of 2,3-diphenylbutadiene: A revealing kinetic study
Iridium-mediated asymmetric hydrogenation of 2,3-diphenylbutadiene: A revealing kinetic study
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DOI:
10.1021/ja037653a
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发表时间:
2003-11-26
影响因子:
15
通讯作者:
Burgess, K
中科院分区:
文献类型:
--
作者:
Cui, XH;Burgess, K
Hydrogenation of 2,3-diphenylbutadiene mediated by a chiral iridium carbene oxazoline complex was studied. The kinetics of the reaction showed that it occurred in two distinct stages. The first corresponded to slow consumption of the diene to form half-hydrogenated products, i.e., monoenes. After all the diene was consumed, however, the reaction was much faster and more stereoselective. These data were interpreted in terms of possible catalytic intermediates.