Ethanol → HCID 86588618, compound

HRID 1791448Notes

Reaction equation

[CH2:1]([N:8]1[C:16]2[C:11](=[CH:12][CH:13]=[CH:14][C:15]=2[C:17]2[CH:22]=[CH:21][C:20]([O:23][C:24]([F:27])([F:26])[F:25])=[CH:19][CH:18]=2)[CH:10]=[CH:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[C:28](Cl)(=[O:32])[C:29](Cl)=[O:30].[CH2:34]([OH:36])[CH3:35]>>[CH2:1]([N:8]1[C:16]2[C:11](=[CH:12][CH:13]=[CH:14][C:15]=2[C:17]2[CH:22]=[CH:21][C:20]([O:23][C:24]([F:27])([F:25])[F:26])=[CH:19][CH:18]=2)[C:10]([C:28](=[O:32])[C:29]([O:36][CH2:34][CH3:35])=[O:30])=[CH:9]1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

Reactant 3

HCID 702Ethanol

HCID 65578Oxalyl chloride

HCID 22032974HCID 22032974, compound

Product 1

HCID 86588618HCID 86588618, compoundYield 61%

Procedure

Ethyl {1-benzyl-7-[4-(trifluoromethoxy)phenyl]-1H-indol-3-yl}(oxo)acetate was prepared from 1-benzyl-7-[4-(trifluoromethoxy)phenyl]-1H-indole (0.421 g, 1.15 mmol), oxalyl chloride (0.60 mL, 6.9 mmol), and ethanol (3 mL) following the procedure described in Step 3 of Example 1. Purification by flash chromatography (Biotage apparatus) using 3-7.5% ethyl acetate in hexane as an eluant yielded the title compound as a yellow gum (0.328 g, 61%). 1 HNMR (300 MHz, DMSO-d6): δ 8.7 (s, 1H), 8.35 (d, 1H, J=7.7 Hz), 7.35 (t, 1H, J=7.7 Hz), 7.0-7.3 (m, 8H), 6.3 (d, 2H, J=7.7 Hz), 5.25 (s, 2H), 4.35 (q, 2H, J=7.4 Hz), and 1.35 ppm (t, 3H, J=7.3 Hz).

Workup

customPurification by flash chromatography (Biotage apparatus)

Sources & evidence

ORD record: ord-5d5641fd4b454eecbcc68e8935391e6e
Source dataset: uspto-grants-2006_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07074817B2

Reaction notes

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