2-Propynoxyethanol → (Z)-1,3-dihydro-4-[3-(2-hydroxyethoxy)-1-propynyl]-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one

Participants

Reaction Steps

Using Method C above, 3-(2-hydroxyethoxy)-1-propyne (53 mg, 0.53 mmol) (from Example 21 above) was coupled with (Z)-1,3-dihydro-4-iodo-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one (150 mg, 0.41 mmol) (Starting Material 2 supra) using (Ph3P)2PdCl2 (20 mg) and Cul (10 mg) as catalyst in DMF (2 mL) and Et3N (2 mL) as solvent at 70° C. for 18 h to yield (Z)-1,3-dihydro-4-[3-(2-hydroxyethoxy)-1-propynyl]-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-2H-indol-2-one. (Yield 68 mg, 49%).

Provenance & Evidence