Acetylene gas has been applied as a feedstock under transition-metal catalysis and photo-redox conditions to produce important chemicals including terminal alkynes, fulvenes, and fluorinated styrene compounds. The reaction discovery process was accelerated through the use of “stop-flow” micro-tubing reactors. This reactor prototype was developed by joining elements from both continuous micro-flow and
Sequential Direct S<sub>N</sub>Ar Reactions of Pentafluorobenzenes with Azole or Indole Derivatives
作者:Frederik Diness、Mikael Begtrup
DOI:10.1021/ol5012554
日期:2014.6.6
Sequential regioselective N-arylations through high-yielding catalyst-free direct SNAr reactions of pentafluorobenzene derivatives with azole or indole derivatives are described. The N-arylated derivatives were further functionalized through a microwave-assisted cross-coupling reaction via C–H bond activation or Suzuki conditions. The order of the reactions could be reversed, proving full orthogonality
描述了通过五氟苯衍生物与唑或吲哚衍生物的高产率,无催化剂的直接S N Ar反应进行的顺序区域选择性N-芳基化。所述Ñ -arylated衍生物通过通过C-H键活化或Suzuki条件微波辅助交叉偶联反应进一步官能化。反应的顺序可以颠倒,证明反应之间完全正交,从而导致定义明确的完全取代的苯衍生物。