[C:1]1([CH3:11])[CH:6]=[C:5]([CH3:7])[CH:4]=[C:3]([CH3:8])[C:2]=1[Mg]Br.P(C(C)(C)C)(C(C)(C)C)C(C)(C)C.Br[C:26]1[CH2:27][C:28]2[C:33]([CH:34]=1)=[CH:32][CH:31]=[CH:30][CH:29]=2>C1COCC1.[Cl-].[Na+].O.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd]>[C:1]1([CH3:11])[CH:6]=[C:5]([CH3:7])[CH:4]=[C:3]([CH3:8])[C:2]=1[C:26]1[CH2:34][C:33]2[C:28]([CH:27]=1)=[CH:29][CH:30]=[CH:31][CH:32]=2A mixture of 50.0 ml (20.0 mmol) of 0.4 M mesitylmagnesium bromide in THF, 230 mg (0.40 mmol) of Pd(dba)2, 162 mg (0.80 mmol) of PtBu3, and 3.90 g (20.0 mmol) of 2-bromo-1H-indene was stirred for 48 h at ambient temperature. Then, to the resulting mixture 200 ml of brine was added. The organic layer was separated, and the aqueous layer was extracted with 3×100 ml of ether. The combined organic fractions were dried over K2CO3 and then evaporated to dryness. The product was isolated by flash chromatography on Silica Gel 60 (40-63 um, d 30 mm, 1 300 mm, eluent: hexanes-dichloromethane, 20:1, vol.). Yield 3.19 g (68%) of white solid.
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