发明名称 |
NOVEL RUTHENIUM METAL ALKYLIDENE COMPLEXES COORDINATED WITH TRIAZOLYLIDENE LIGANDS THAT EXHIBIT HIGH OLEFIN METATHESIS ACTIVITY |
摘要 |
The invention discloses ruthenium alkylidene complexes of the type (PCy3)(L)Cl2Ru(CHPh), where L is a triazolylidene ligand of the general formula:These catalysts have been found to be considerably more active for olefin metathesis at elevated temperatures than the parent catalyst (PCy3)2Cl2Ru(CHPh)(2). For example, complex 14 (L=1,3,4-triphenyl-4.5-dihydro-1H-triazol-5-ylidene) is able to catalyze the ring-closing metathesis of substituted dienes to give tetra-substituted cyclic olefins in good yield. In addition, this complex demonstrates the analogous stability towards oxygen and moisture exhibited by ruthenium alkylidene 2. |
申请公布号 |
EP1180107(A4) |
申请公布日期 |
2005.01.12 |
申请号 |
EP20000921600 |
申请日期 |
2000.03.31 |
申请人 |
CALIFORNIA INSTITUTE OF TECHNOLOGY |
发明人 |
GRUBBS, ROBERT H.;TRNKA, TINA M. |
分类号 |
C07D249/08;B01J31/22;C07B61/00;C07C67/333;C07C69/74;C07D313/00;C07F15/00;C08F4/06;C08F4/80;C08G61/08 |
主分类号 |
C07D249/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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