Mechanism of co-dimerization of vinylboronates with terminal alkynes catalyzed by ruthenium-hydride complex

被引：4
|
作者：
Pyziak, Jadwiga [1 ]
Walkowiak, Jedrzej [2 ]
Hoffmann, Marcin [1 ]
Marciniec, Bogdan [1 ,2 ]
机构：
[1] Adam Mickiewicz Univ, Fac Chem, PL-61614 Poznan, Poland
[2] Adam Mickiewicz Univ, Ctr Adv Technol, PL-61614 Poznan, Poland
来源：
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2015年 / 396卷
关键词：
Silylalkynes; Co-dimerization; Vinylboronates; DFT calculations; Kinetics; CARBON-HYDROGEN BONDS; ALKENES; ROUTE; INSERTION; DENSITY; SYSTEMS; PSEUDOPOTENTIALS; VINYLGERMANES; ELEMENTS; OLEFINS;
D O I：
10.1016/j.molcata.2014.09.040
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The co-dimerization reaction of vinylboronates with terminal alkynes, which was discovered in our group, is an efficient method for the synthesis of boryl- and borylsilylsubstituted buta-1,3-dienes. This study is a continuation of our previous and present results concerning the mechanism of this new catalytic reaction in boron chemistry. DFT calculations, as well as kinetic measurements carried out at several different temperatures in the range of 70-100 degrees C, provided rational grounds for the mechanism proposed previously on basis of stoichiometric reactions monitored by H-1 NMR. The activation energy and the rate determining step were also estimated. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：239 / 244
页数：6
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