期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 59, 期 3, 页码 1206-1210出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201913088
关键词
metathesis; olefins; palladium; polymerizations; synthetic methods
资金
- National Natural Science Foundation of China (NSFC) [21690071, 21704094]
- Fundamental Research Funds for the Central Universities
Transition metal catalyzed ethylene copolymerization with polar monomers is a highly challenging reaction. After decades of research, the scope of suitable comonomer substrates has expanded from special to fundamental polar monomers and, recently, to 1,1-disubstituted ethylenes. Described in this contribution is a direct and tandem strategy to realize ethylene copolymerization with various 1,2-disubstituted ethylenes. The direct route is sensitive to sterics of both the comonomers and the catalyst. In the tandem route, ruthenium-catalyzed ethenolysis can convert 1,2-disubstituted ethylenes into terminal olefins, which can be subsequently copolymerized with ethylene to afford polar functionalized polyolefins. The one-pot, two-step tandem route is highly versatile and efficient in dealing with challenging substrates. This work is a step forward in terms of expanding the substrate scope for transition metal catalyzed ethylene copolymerization with polar-functionalized comonomers.
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