Triphenylphosphine → HCID 67036257, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 3-{[(2-iodo-phenyl)-(4-methyl-pent-2-ynoyl)-amino]-methyl}-benzoic acid methyl ester (0.93 g, 2.02 mmol), 4-chlorophenylboronic acid (0.63 g, 4.04 mmol), triphenylphosphine (53 mg, 0.202 mmol), palladium acetate (23 mg, 0.10 mmol) and cesium fluoride (0.92 g, 6.06 mmol) in THF (15 ml) was stirred for 3 hours at 60° C. After removal of solvent, the residue was purified by flash chromatography, eluting with ethyl acetate/hexane=1:5 to afford the product 3-{3-[1-(4-chloro-phenyl)-2-methyl-propylidene]-2-oxo-2,3-dihydro-indol-1-ylmethyl}-benzoic acid methyl ester (0.40 g, 44%) as a yellow solid. MS calcd. for C27H24ClNO3 445.5, obsd. (ESI+) [(M+H)+] 446.0. 1H NMR (400 MHz, DMSO-d6) δ ppm 1.10 (d, J=6.82 Hz, 6H) 3.91 (s, 3H) 4.99 (dt, J=13.71, 6.92 Hz, 1H) 5.06 (s, 2H) 5.73 (d, J=7.58 Hz, 1H) 6.62 (t, J=7.71 Hz, 1H) 6.73 (d, J=7.83 Hz, 1H) 7.05 (t, J=7.71 Hz, 1H) 7.19 (d, J=8.34 Hz, 2H) 7.46 (t, J=7.83 Hz, 1H) 7.55 (d, J=8.08 Hz, 3H) 7.94 (d, J=7.58 Hz, 1H) 8.02 (s, 1H) MS calcd. for C27H24ClNO3 445.5, obsd. (ESI+) [(M+H)+] 446.0.

Provenance & Evidence