2-([1,1′-Biphenyl]-4-yl)-5-[(<i>E</i>)-2-(3-methoxy-1-phenyl-1<i>H</i>-pyrazol-4-yl)ethenyl]-3,3-dimethyl-3<i>H</i>-indole

Abstract

The ligandless palladium-catalyzed Heck reaction of 4-ethenyl-3-methoxy-1-phenyl-1H-pyrazole and 2-([1,1′-biphenyl]-4-yl)-5-bromo-3,3-dimethyl-3H-indole gave the previously unreported 2-([1,1′-biphenyl]-4-yl)-5-[(E)-2-(3-methoxy-1-phenyl-1H-pyrazol-4-yl)ethenyl]-3,3-dimethyl-3H-indole in 45% yield. The compound was characterized using NMR, FT-IR spectroscopy, and HRMS data. The optical properties of the compound were investigated in tetrahydrofuran by UV-Vis and fluorescence spectroscopy.

Keywords

• biphenyl
• indole
• pyrazole
• Heck reaction
• fluorescence