2-Chlorophenol → 2-tert-Butyl-4-{[3-(2-chlorophenoxy)propyl]amino}-5-phenylisothiazol-3(2H)-one 1,1-dioxide

HRID 2239626Notes

Reaction equation

HRID 2239626 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[OH:8].CC1C=CC(S(O[CH2:20][CH2:21][CH2:22][NH:23][C:24]2[C:25](=[O:41])[N:26]([C:37]([CH3:40])([CH3:39])[CH3:38])[S:27](=[O:36])(=[O:35])[C:28]=2[C:29]2[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=2)(=O)=O)=CC=1>>[C:37]([N:26]1[C:25](=[O:41])[C:24]([NH:23][CH2:22][CH2:21][CH2:20][O:8][C:3]2[CH:4]=[CH:5][CH:6]=[CH:7][C:2]=2[Cl:1])=[C:28]([C:29]2[CH:30]=[CH:31][CH:32]=[CH:33][CH:34]=2)[S:27]1(=[O:35])=[O:36])([CH3:38])([CH3:39])[CH3:40]

Participants

3

Reactant 2

HCID 72452-ChlorophenolHCID 866258673-[(2-Tert-butyl-1,1-dioxido-3-oxo-5-phenyl-2,3-dihydroisothiazol-4-yl)amino]propyl 4-methylbenzenesulfonate

Product 1

HCID 115904652-tert-Butyl-4-{[3-(2-chlorophenoxy)propyl]amino}-5-phenylisothiazol-3(2H)-one 1,1-dioxideYield 77%

Procedure

The title compound was prepared as described for Example 12 from 2-chlorophenol and 3-[(2-tert-butyl-1,1-dioxido-3-oxo-5-phenyl-2,3-dihydroisothiazol-4-yl)amino]propyl 4-methylbenzenesulfonate with a reaction time of 15 mins. The reaction mixture was evaporated and the crude product was purified by silica gel column chromatography (Horizons Biotage) using 15% EtOAc in petroleum ether 40-60° C. as eluent to give the title compound (0.085 g, 77%). 1H NMR (500 MHz CDCl3): δ 7.53-7.50 (m, 2H), 7.44-7.42 (m, 3H), 7.36 (dd, 1H), 7.19 (dt, 1H), 7.6.92 (dt, 1H), 6.83 (dd, 1H), 5.56 (t, 1H), 3.89 (t, 2H), 3.28 (m, 2H), 1.88-1.84 (m, 2H), 1.74 (s, 9H); 13C NMR (125 MHz CDCl3): δ 159.8, 154.2, 135.3, 131.8, 130.6, 129.8, 128.8, 127.9, 125.2, 123.4, 122.1, 113.7, 107.4, 66.7, 61.7, 41.8, 29.2, 27.8; Mass Spectrum M+H+ 449.

Workup

  1. customThe title compound was prepared
  2. customThe reaction mixture was evaporated
  3. customthe crude product was purified by silica gel column chromatography (Horizons Biotage)
  4. custom15% EtOAc in petroleum ether 40-60° C.

Sources & evidence

ORD record
ord-5015a3c6c9604859920e1c0c8452860c
Source dataset
uspto-grants-2010_05
Patent number
US07723333B2

Reaction notes

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