Diisopropylethylamine → HCID 71455423, compound
Reaction equation
Cl[C:2]([O:4][C:5]1[CH:10]=[CH:9][C:8]([Cl:11])=[CH:7][CH:6]=1)=[O:3].[C:12]([C:15]1[CH:16]=[C:17]([CH:22]=[CH:23][CH:24]=1)[C:18]([NH2:21])([CH3:20])[CH3:19])(=[O:14])[CH3:13].C(N(C(C)C)CC)(C)C>ClCCl>[C:12]([C:15]1[CH:16]=[C:17]([C:18]([NH:21][C:2](=[O:3])[O:4][C:5]2[CH:10]=[CH:9][C:8]([Cl:11])=[CH:7][CH:6]=2)([CH3:20])[CH3:19])[CH:22]=[CH:23][CH:24]=1)(=[O:14])[CH3:13]Participants
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
4-Chlorophenyl chloroformate (317 μL, 2.24 mmol) in dichloromethane (2 mL) was added to a mixture of 3-acetyl-α, α-dimethylbenzylamine 24 and diisopropylethylamine (390 μL, 2.24 mmol). The reaction mixture was stirred for 2 h. It was then diluted with dichloromethane, washed with 1 N HCl, and then brine. The organic layer was dried over anhydrous magnesium sulfate, filtered and concentrated. The residue was purified by column chromatography using hexane/ethyl acetate as eluent to give 25 (594 mg, 81%). 1H NMR (CDCl3, 400 MHz) δ 1.73 (s, 6H), 2.60 (s, 3H), 5.65 (s, 1H), 7.02 (d, J=8.4 Hz, 1H), 7.25 (d, J=6 Hz, 2H), 7.44 (t, J=8 Hz, 1H), 7.65 (d, J=7.6 Hz, 1H), 7.82 (d, J=7.6 Hz, 1H), 8.07 (1H, s); 13C NMR (DMSO-d, 100 MHz) δ 27.45, 29.79, 55.50, 124.23, 124.55, 127.31, 129.28, 129.55, 129.79, 130.39, 137.30, 148.70, 150.32, 152.97, 198.64; ESI-HRMS for C18H19NO3Cl (M+H)+ calcd. 332.1053. found 332.1059.
Workup
- washwashed with 1 N HCl
- dry with materialThe organic layer was dried over anhydrous magnesium sulfate
- filtrationfiltered
- concentrationconcentrated
- customThe residue was purified by column chromatography
Sources & evidence
- ORD record
- ord-3162cc8e0c5445eca43e2b4b84f6e498
- Source dataset
- uspto-grants-2016_09
- Patent number
- US09447134B2
Reaction notes
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