2,3-Dimethoxybenzeneboronic acid → HCID 86599148, compound

HRID 2116063Notes

Reaction equation

HRID 2116063 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]=[CH:19][CH:20]=[C:21](Br)[C:15]=3[O:14]2)(=[O:10])=[O:9])=[CH:4][CH:3]=1.[O:23]([C:25]1[C:30]([O:31][CH3:32])=[CH:29][CH:28]=[CH:27][C:26]=1B(O)O)[CH3:24]>>[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]=[CH:19][CH:20]=[C:21]([C:29]4[CH:28]=[CH:27][CH:26]=[C:25]([O:23][CH3:24])[C:30]=4[O:31][CH3:32])[C:15]=3[O:14]2)(=[O:10])=[O:9])=[CH:4][CH:3]=1

Participants

3

Reactant 2

HCID 51564912,3-Dimethoxybenzeneboronic acidHCID 58747572(7-Bromo-2,3-dihydro-1-benzofuran-2-yl)methyl 4-methylbenzenesulfonate

Product 1

HCID 86599148HCID 86599148, compoundYield 82%

Procedure

Treatment of (±)-(7-bromo-2,3-dihydro-1-benzofuran-2-yl)methyl 4-methylbenzenesulfonate (0.30 g, 0.783 mmol) with (2,3-dimethoxylphenyl)boronic acid (0.427 g, 2.35 mmol) generally according to the procedure described for Intermediate 184 provided 0.283 g (82%) of (±)-[7-(2,3-dimethoxylphenyl)-2,3-dihydro-1-benzofuran-2-yl]methyl 4-methylbenzenesulfonate as a white solid. Rf=0.43 (silica, ethyl acetate:hexanes 1:4).

Sources & evidence

ORD record
ord-cbe917599e514c078665e4a086d98136
Source dataset
uspto-grants-2008_10
Patent number
US07435837B2

Reaction notes

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