Benzoyl chloride → HCID 118353317, compound

HRID 921058Notes

Reaction equation

[Br:1][C:2]1[CH:7]=[CH:6][C:5]([CH2:8][CH2:9][OH:10])=[CH:4][CH:3]=1.CCN(CC)CC.[C:18](Cl)(=[O:25])[C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1>C1COCC1>[C:18]([O:10][CH2:9][CH2:8][C:5]1[CH:6]=[CH:7][C:2]([Br:1])=[CH:3][CH:4]=1)(=[O:25])[C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1

Participants

Conditions

Temperature: 23 °C

Procedure

To a mixture of 2-(4-bromophenyl)ethanol (1.00 g, 4.97 mmol, 1.00 equiv) and Et3N (0.763 ml, 0.554 g, 5.47 mmol, 1.10 equiv) in a round-bottom flask in THF (20 ml) was added benzoyl chloride (0.589 mL, 0.713 g, 5.07 mmol, 1.02 equiv). The reaction mixture was stirring for 4 h at 23 ° C. and concentrated in vacuo. The residue was purified by chromatography on silica gel eluting with hexanes/EtOAc 1:1 (v/v) to afford 1.50 g of the title compound as a colorless solid (99%). Rf=0.7 (hexanes/EtOAc 1:1 (v/v)). NMR Spectroscopy: 1H NMR (500 MHz, CDCl3, 23 ° C., δ): 8.00 (d, J=7.2 Hz, 1H), 7.58-7.54 (m, 1H), 7.45-7.42 (m, 4H), 7.16 (d, J=8.4 Hz, 2H), 4.51 (t, J=6.4 Hz, 2H), 3.04 (t, J=6.4 Hz, 2H). 13C NMR (125 MHz, CDCl3, 23 ° C., δ): 166.6, 137.1, 133.1, 131.8, 130.8, 130.3, 129.7, 128.5, 120.6, 65.2, 34.8.

Workup

concentrationconcentrated in vacuo
customThe residue was purified by chromatography on silica gel eluting with hexanes/EtOAc 1:1 (v/v)

Sources & evidence

ORD record: ord-8da636bde9f049afb3bdfb855badf4c4
Source dataset: uspto-grants-2016_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09273083B2

Reaction notes

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