Degradation of the second-generation grubbs metathesis catalyst with primary alcohols and oxygen - Isomerization and hydrogenation activities of monocarbonyl complexes
Degradation of the second-generation grubbs metathesis catalyst with primary alcohols and oxygen - Isomerization and hydrogenation activities of monocarbonyl complexes
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DOI：
10.1002/ejic.200200702
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发表时间：
2003-08-04
影响因子：
2.3
通讯作者：
Mol, JC
中科院分区：
文献类型：
--
作者：
Dinger, MB;Mol, JC
第二代格拉布斯歧化催化剂[RuCl2(=CHPh)(H(2)IMES)(PCy3)](2)(H(2)IMES=1，3-二甲基-4，5-二氢咪唑-2-亚甲基)在碱存在下与伯醇反应生成了配合物[RuClH(CO)(PCy3)(2)](3)和[RuClH(CO)(H(2)Imes)(PCy3)](5)。当使用苯甲醇时，除了3和5外，还生成了Ru-苯基配合物[RuClPh(CO)(PCy3)(2)](4)和[RuClPh(CO)(H_2I-Mes)(PCy3)](7)。测定了7的异构化和加氢活性，并与3和4进行了比较。(C)Wiley-VCH Verlag GmbH&Co.KGaA，69451 Weinheim，德国，2003年。
Reaction of the second-generation Grubbs metathesis catalyst [RuCl2(=CHPh)(H(2)IMes)(PCy3)] (2) (H(2)IMes = 1,3-dimethyl-4,5-di-hydroimidazol-2-ylidene) with primary alcohols in the presence of a base produced the complexes [RuClH(CO)(PCy3)(2)](3) and [RuClH(CO)(H(2)IMes)(PCy3)](5). When benzyl alcohol was used, the ruthenium phenyl complexes [RuClPh(CO)(PCy3)(2)] (4) and [RuClPh(CO)(H2I-Mes)(PCy3)] (7) were formed in addition to 3 and 5. Complex 7, characterised by an X-ray structure analysis, was also formed on exposure of 2 to oxygen. The isomerization and hydrogenation activity of 7 was determined and compared with that of 3 and 4. (C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003.