Journal
SCIENCE
Volume 375, Issue 6584, Pages 1021-+Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.abm5281
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Funding
- University of Bayreuth
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Alpha-olefins are crucial for the production of plastics, pharmaceuticals, and chemicals. However, the selective synthesis of alpha-olefins from ethylene is limited. This study presents a catalytic reaction that combines an alpha-olefin with two ethylene molecules using a highly active and stable molecular titanium catalyst.
alpha-Olefins are important starting materials for the production of plastics, pharmaceuticals, and fine and bulk chemicals. However, the selective synthesis of alpha-olefins from ethylene, a highly abundant and inexpensive feedstock, is restricted, and thus a broadly applicable selective alpha-olefin synthesis using ethylene is highly desirable. Here, we report the catalytic reaction of an alpha-olefin with two ethylene molecules. The first ethylene molecule forms a 4-ethyl branch and the second a new terminal carboncarbon double bond (C2 elongation). The key to this reaction is the development of a highly active and stable molecular titanium catalyst that undergoes extremely fast beta-hydride elimination and transfer.
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