Evaluation of Several Molybdenum and Ruthenium Catalysts for the Metathesis Homocoupling of 3-Methyl-1-Butene

被引：2
作者：
Sues, Peter E. [1 ]
Bukhryakov, Konstantin V. [1 ]
Schrock, Richard R. [1 ]
机构：
[1] MIT, Dept Chem 6 331, Cambridge, MA 02139 USA
来源：
HELVETICA CHIMICA ACTA | 2017年 / 100卷 / 10期
基金：
美国国家科学基金会;
关键词：
Olefin metathesis; Homocoupling; Molybdenum; Ruthenium; 3-Methyl-1-butene; IMIDO ALKYLIDENE COMPLEXES; RING-CLOSING METATHESIS; N-HETEROCYCLIC CARBENES; AR-ASTERISK-OH; P-XYLENE; OLEFIN METATHESIS; TEREPHTHALIC ACID; CROSS-METATHESIS; TRANSFER DEHYDROGENATION; OXIDATION;
D O I：
10.1002/hlca.201700181
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We synthesized Mo(NC6F5)(CHCMe2Ph)(TPPO)(PPhMe2)Cl (TPPO = 2,3,5,6-tetraphenylphenoxide), Mo(NC6F5)(CHCMe2Ph)(TTBTO)(PPhMe2)Cl (TTBTO = 2,6-di(3,5-di-tert-butylphenyl)phenoxide), and Mo(NC6F5)(CHCMe2Ph)(TPPO)(PPhMe2)(CF(3)Pyr) (CF(3)Pyr = 3,4-bistrifluoromethylpyrrolide), in order to evaluate them as catalysts for the homocoupling of 3-methyl-1-butene. They were compared with Mo(NC6F5)(CHCMe2Ph)(HMTO)(PPhMe2)Cl (HMTO = 2,6-dimesitylphenoxide), Mo(NC6F5)(CHCMe2Ph)(HIPTO)(PPhMe2)Cl (HIPTO = 2,6-di(2,4,6-triisopropylphenyl)phenoxide), and several other Mo and Ru catalysts. In the best cases turnover numbers (TONs) of 400 - 700 were observed for the homocoupling of 3-methyl-1-butene in a closed vessel (ethylene not removed).
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页数：7
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