Butane-2-sulfonyl chloride → Tert-butyl 2-(3-(1-methylpropylsulfonamido)phenoxy)ethylcarbamate
Reaction equation
[NH2:1][C:2]1[CH:3]=[C:4]([CH:16]=[CH:17][CH:18]=1)[O:5][CH2:6][CH2:7][NH:8][C:9](=[O:15])[O:10][C:11]([CH3:14])([CH3:13])[CH3:12].[CH3:19][CH:20]([S:23](Cl)(=[O:25])=[O:24])[CH2:21][CH3:22]>>[CH3:19][CH:20]([S:23]([NH:1][C:2]1[CH:3]=[C:4]([CH:16]=[CH:17][CH:18]=1)[O:5][CH2:6][CH2:7][NH:8][C:9](=[O:15])[O:10][C:11]([CH3:14])([CH3:13])[CH3:12])(=[O:25])=[O:24])[CH2:21][CH3:22]Participants
3
Procedure
Sulfonation of tert-butyl 2-(3-aminophenoxy)ethylcarbamate (3) using butane-2-sulfonyl chloride following the method described in Example 1 gave tert-butyl 2-(3-(1-methylpropylsulfonamido)phenoxy)ethylcarbamate (6) as a light yellow oil. 1H NMR (400 MHz, DMSO-d6) δ 9.72 (s, 1H), 7.17 (t, J=8.0 Hz, 1H), 6.97 (t, J=6.0 Hz, 1H), 6.76-6.78 (m, 2H), 6.59-6.62 (m, 1H), 3.87 (t, J=5.6 Hz, 2H), 3.24 (q, J=6.4 Hz, 2H), 2.93-3.02 (m, 1H), 1.80-1.91 (m, 1H), 1.40-1.48 (m, 1H), 1.35 (s, 9H), 1.19 (d, J=6.8 Hz, 3H), 0.88 (t, J=7.2 Hz, 3H).
Sources & evidence
- ORD record
- ord-85786e9cfc2c4939bd03878022190653
- Source dataset
- uspto-grants-2015_11
- Patent number
- US09193669B2
Reaction notes
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