Cross-Coupling Reactions of (1-Fluorovinyl)methydiphenylsilane<sup>1</sup> with Aryl Halides and Aryl Triflates
作者:Takeshi Hanamoto、Tomoko Kobayashi
DOI:10.1021/jo030111r
日期:2003.8.1
of functional groups (nitro, ester, ketone, and ether) on the aromatic rings can be tolerated under these mild conditions. Aryl iodides are superior to aryl bromides as the coupling reaction partner. The cross-coupling reaction of 1 with aryl triflates instead of aryl halides was also accomplished in the presence of tetrabutylammonium iodide (n-Bu(4)NI) as the additive under similar conditions.
研究了(1-氟乙烯基)甲基二苯基硅烷(1)与芳基卤化物和芳基三氟甲磺酸酯的氟化铯(CsF)辅助交叉偶联反应。与芳基碘化物的反应平稳进行,在非质子极性溶剂(例如DMF,DMI,DMA和DFA)中,在催化量的CuI和Pd(PPh(3))(4)存在的情况下,提供了相应的(1-氟乙烯基)芳烃。 NMP产量高。在这些温和条件下,可以容忍芳香环上的各种官能团(硝基,酯,酮和醚)。作为偶联反应伙伴,芳基碘化物优于芳基溴化物。在存在四丁基碘化铵(n-Bu(4)NI)作为添加剂的情况下,在相似的条件下,也完成了1与芳基三氟甲磺酸酯而不是芳基卤化物的交叉偶联反应。