Nickel-Catalyzed Formation of 1,3-Dienes via a Highly Selective Cross-Tetramerization of Tetrafluoroethylene, Styrenes, Alkynes, and Ethylene
作者:Takuya Kawashima、Masato Ohashi、Sensuke Ogoshi
DOI:10.1021/jacs.7b12007
日期:2017.12.13
In the presence of a catalytic amount of Ni(cod)2 (cod = 1,5-cyclooctadiene) and PCy3 (Cy = cyclohexyl), the cross-tetramerization of tetrafluoroethylene (TFE), alkynes, and ethylene occurred in a highly selective manner to afford a variety of 1,3-dienes with a 3,3,4,4-tetrafluorobutyl chain. In addition, a Ni(0)-catalyzed cross-tetramerization of TFE, alkynes, ethylene, and styrenes was developed
在催化量的 Ni(cod)2 (cod = 1,5-环辛二烯) 和 PCy3 (Cy = 环己基) 存在下,四氟乙烯 (TFE)、炔烃和乙烯的交叉四聚反应以高度选择性的方式发生得到各种具有 3,3,4,4-四氟丁基链的 1,3-二烯。此外,还开发了 Ni(0) 催化的 TFE、炔烃、乙烯和苯乙烯的交叉四聚反应。这些催化反应可能通过部分氟化的五元和七元镍环关键中间体进行。