Highly Active Cross-Metathesis of Tetrafluoroethylene with a Seven-Membered N-Heterocyclic-Carbene-Ruthenium Catalyst.
Highly Active Cross-Metathesis of Tetrafluoroethylene with a Seven-Membered N-Heterocyclic-Carbene-Ruthenium Catalyst.
复制标题
四氟乙烯与七元杂环卡宾钌催化剂的高活性交叉复分解。
DOI：
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发表时间：
2021
影响因子：
15
通讯作者：
T. Okazoe
中科院分区：
文献类型：
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作者：
Kenta Mori;M. Akiyama;Kozo Inada;Y. Imamura;Yuichiro Ishibashi;Y. Takahira;K. Nozaki;T. Okazoe
催化剂周转数（TON）的急剧增加，完成在交叉复分解的四氟乙烯（TFE）和乙烯基醚。在TFE的连续流动下，含有七元N-杂环卡宾（NHC）配体的催化剂Ru 7达到4100的TON;这比迄今报道的最高值高2个数量级。机理研究表明，扩大NHC成功地破坏了稳定的中间体与二氟卡宾结构，这强烈地促进了反应。
A drastic increase in catalyst turnover number (TON) was accomplished in the cross-metathesis of tetrafluoroethylene (TFE) and vinyl ethers. Under a continuous flow of TFE, catalyst Ru7, which contains a seven-membered N-heterocyclic carbene (NHC) ligand, reached a TON of 4100; this is 2 orders of magnitude higher than the highest hitherto reported value. Mechanistic studies revealed that the expanded NHC successfully destabilizes the stable intermediates with a difluorocarbene structure, which strongly promotes the reaction.
影响因子：
5.5
作者：
Buchmeiser, Michael R.;Ahmad, Irshad;Kumar, P. Santhosh
通讯作者：
Kumar, P. Santhosh