Cesium fluoride → HCID 59425912, compound

Participants

Reaction Conditions

Reaction Steps

A tube is charged with a mixture of 5-bromo-1-ethyl-1H-indole-3-carbonitrile (100 mg, 0.40 mmol), thiophene-3-boronic acid (72 mg, 0.56 mmol), PdCl2(PPh3)2 (11 mg, 0.016 mmol) and CsF (152 mg, 1 mmol) and then alternately evacuated and filled with nitrogen (3×) and diluted with dimethoxyethane (3 mL) and then heated to 90° C. for 19 h. After cooling, the crude reaction mixture is diluted with saturated NaHCO3 and extracted with EtOAc (2×). The combined organic phases are washed with saturated NaCl and dried and concentrated. Flash chromatography over silica gel (CH2Cl2/hexanes, 40/60) gives 25 mg (25%) of 1-ethyl-5-thiophen-3-yl-1H-indole-3-carbonitrile as a white solid.

Provenance & Evidence