Potassium Carbonate → HCID 86599118, compound

HRID 2116005Notes

Reaction equation

HRID 2116005 reaction equation
[CH3:1][C:2]1[CH:7]=[CH:6][C:5]([S:8]([O:11][CH2:12][CH:13]2[CH2:17][C:16]3[CH:18]=[C:19]([F:23])[CH:20]=[C:21](Br)[C:15]=3[O:14]2)(=[O:10])=[O:9])=[CH:4][CH:3]=1.[F:24][C:25]([F:36])([F:35])[C:26]1[CH:31]=[CH:30][CH:29]=[CH:28][C:27]=1B(O)O.C(=O)([O-])[O-].[K+].[K+]>CC1C=CC=CC=1[P](C1C=CC=CC=1C)([Pd](Cl)(Cl)[P](C1=C(C)C=CC=C1)(C1C=CC=CC=1C)C1C=CC=CC=1C)C1C=CC=CC=1C>[CH3:1][C:2]1[CH:7]=[CH:6][C:5]([S:8]([O:11][CH2:12][CH:13]2[CH2:17][C:16]3[CH:18]=[C:19]([F:23])[CH:20]=[C:21]([C:27]4[CH:28]=[CH:29][CH:30]=[CH:31][C:26]=4[C:25]([F:36])([F:35])[F:24])[C:15]=3[O:14]2)(=[O:10])=[O:9])=[CH:4][CH:3]=1

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 27343872-(Trifluoromethyl)benzeneboronic acidHCID 86599113(+/-)-(7-Bromo-5-fluoro-2,3-dihydro-1-benzofuran-2-yl)methyl 4-methylbenzenesulfonate

Product 1

HCID 86599118HCID 86599118, compoundYield 93%

Reagents, catalysts & solvents 1

HCID 178424406HCID 178424406, compoundCatalyst

Procedure

Treatment of (±)-(7-bromo-5-fluoro-2,3-dihydro-1-benzofuran-2-yl)methyl 4-methylbenzenesulfonate (4.01 g, 10.0 mmol) with 2-(trifluoromethyl)-phenyl boronic acid (2.85 g, 15.0 mmol), dichlorobis(tri-o-tolylphosphine)palladium(II) (0.786 g, 1.00 mmol), and potassium carbonate (3.46 g, 25.00 mmol) generally according to the procedure described for Intermediate 37 provided 4.34 g (93%) of (±)-{5-fluoro-7-[2-(trifluoromethyl)phenyl]-2,3-dihydro-1-benzofuran-2-yl}methyl 4-methylbenzenesulfonate as a yellow oil. Rf=0.54 (silica, ethyl acetate:hexanes 3:7); Anal. calcd. for C23H18F4O4S: C, 59.22; H, 3.89. Found: C, 60.19; H, 4.29.

Sources & evidence

ORD record
ord-06f7c52ad48d4987b2daa9c941a342df
Source dataset
uspto-grants-2008_10
Patent number
US07435837B2

Reaction notes

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