Triethylamine → HCID 9857885, compound

Participants

Reaction Steps

This compound was also prepared in a manner analogous to the preparation of (Z)-1,3-dihydro-5-(4-hydroxyphenyl)ethynyl-3-[(1H-pyrrol-2-yl)methylene]-2H-indol-2-one in Example 83 above. In this example, (Z)-1,3-dihydro-5-ethynyl-3-[(1H-pyrrol-2-yl)methylene]-2H-indol-2-one (47 mg, 0.21 mmol) (Example 82) was coupled with 3-bromopyridine (33 mg, 0.30 mmol) (Aldrich) using CuI (8 mg, 0.042 mmol) (Aldrich) and (Ph3P)2PdCl2 (15 mg, 0.021 mmol) (Aldrich) as catalyst in 1 mL DMF and I mL triethylamine at 70° C. for 15 hours to give (Z)-1,3-dihydro-5-(3-pyridinyl)ethynyl-3-[(1H-pyrrol-2-yl)methylene]-2H-indol-2-one as a red powder. (Yield 30 mg, 47%).

Provenance & Evidence