Ethyl 2-(4-(4-((4-chlorophenethyl)carbamoyl)phenoxy)-3-bromophenyl)acetate → Ethyl 2-(4-(4-((4-chlorophenethyl)carbamoyl)phenoxy)-3-(thiophen-2-yl)phenyl)acetate

HRID 453523Notes

Reaction equation

HRID 453523 reaction equation
[Cl:1][C:2]1[CH:32]=[CH:31][C:5]([CH2:6][CH2:7][NH:8][C:9]([C:11]2[CH:30]=[CH:29][C:14]([O:15][C:16]3[CH:21]=[CH:20][C:19]([CH2:22][C:23]([O:25][CH2:26][CH3:27])=[O:24])=[CH:18][C:17]=3Br)=[CH:13][CH:12]=2)=[O:10])=[CH:4][CH:3]=1.[Br-].[S:34]1[CH:38]=[CH:37][CH:36]=[C:35]1[Zn+]>C1COCC1.CC(C)([P](C(C)(C)C)([Pd][P](C(C)(C)C)(C(C)(C)C)C(C)(C)C)C(C)(C)C)C>[Cl:1][C:2]1[CH:32]=[CH:31][C:5]([CH2:6][CH2:7][NH:8][C:9]([C:11]2[CH:30]=[CH:29][C:14]([O:15][C:16]3[CH:21]=[CH:20][C:19]([CH2:22][C:23]([O:25][CH2:26][CH3:27])=[O:24])=[CH:18][C:17]=3[C:35]3[S:34][CH:38]=[CH:37][CH:36]=3)=[CH:13][CH:12]=2)=[O:10])=[CH:4][CH:3]=1

Participants

5

Reactant 2

HCID 68464724Ethyl 2-(4-(4-((4-chlorophenethyl)carbamoyl)phenoxy)-3-bromophenyl)acetateHCID 178419761HCID 178419761, compound

Product 1

HCID 68466786Ethyl 2-(4-(4-((4-chlorophenethyl)carbamoyl)phenoxy)-3-(thiophen-2-yl)phenyl)acetateYield 83.6%

Reagents, catalysts & solvents 2

HCID 178418851HCID 178418851, compoundCatalystHCID 8028TetrahydrofuranSolvent

Procedure

Ethyl 2-(4-(4-((4-chlorophenethyl)carbamoyl)phenoxy)-3-bromophenyl)acetate (Example 46 step C; 24 mg, 0.046 mmol) was diluted with THF (1 mL) followed by the addition of bis(tri-t-butylphosphine)palladium (0) (2.4 mg, 0.0046 mmol) and 2-thienylzinc bromide (0.23 ml, 0.12 mmol). After stirring for 2 hours, the reaction was purified by silica gel chromatography, eluting with hexanes:ethyl acetate (3:1) to yield ethyl 2-(4-(4-((4-chlorophenethyl) carbamoyl)phenoxy)-3-(thiophen-2-yl)phenyl)acetate (20 mg, 83% yield) as a clear oil.

Workup

  1. customthe reaction was purified by silica gel chromatography
  2. washeluting with hexanes:ethyl acetate (3:1)

Sources & evidence

ORD record
ord-808b1e54fc7d44f6bcf68fd1948a08ce
Source dataset
uspto-grants-2013_07
Patent number
US08492437B2

Reaction notes

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