Water → 5-(4-(2-(1-ethylcyclopentyloxy)-2-oxoethoxy)-3,5-dimethylphenyl)-5H-dibenzo[b,d]thiophenium 1,1-difluoro-2-(methacryloyloxy)ethanesulfonate

HRID 1841860Notes

Reaction equation

HRID 1841860 reaction equation
[Br-].[CH2:2]([C:4]1([O:9][C:10](=[O:34])[CH2:11][O:12][C:13]2[C:18]([CH3:19])=[CH:17][C:16]([S+:20]3[C:24]4[CH:25]=[CH:26][CH:27]=[CH:28][C:23]=4[C:22]4[CH:29]=[CH:30][CH:31]=[CH:32][C:21]3=4)=[CH:15][C:14]=2[CH3:33])[CH2:8][CH2:7][CH2:6][CH2:5]1)[CH3:3].[F:35][C:36]([F:48])([S:44]([O-:47])(=[O:46])=[O:45])[CH2:37][O:38][C:39](=[O:43])[C:40]([CH3:42])=[CH2:41].C([NH+](CC)CC)C.O>ClCCl>[F:48][C:36]([F:35])([S:44]([O-:47])(=[O:46])=[O:45])[CH2:37][O:38][C:39](=[O:43])[C:40]([CH3:42])=[CH2:41].[CH2:2]([C:4]1([O:9][C:10](=[O:34])[CH2:11][O:12][C:13]2[C:14]([CH3:33])=[CH:15][C:16]([S+:20]3[C:21]4[CH:32]=[CH:31][CH:30]=[CH:29][C:22]=4[C:23]4[CH:28]=[CH:27][CH:26]=[CH:25][C:24]3=4)=[CH:17][C:18]=2[CH3:19])[CH2:8][CH2:7][CH2:6][CH2:5]1)[CH3:3]

Participants

5

Reactant 3

HCID 962WaterHCID 86660800Triethylammonium 1,1-difluoro-2-(methacryloyloxy)ethanesulfonateHCID 867124585-(4-(2-(1-ethylcyclopentyloxy)-2-oxoethoxy)-3,5-dimethylphenyl)-5H-dibenzo[b,d]thiophenium bromide

Product 1

HCID 867124655-(4-(2-(1-ethylcyclopentyloxy)-2-oxoethoxy)-3,5-dimethylphenyl)-5H-dibenzo[b,d]thiophenium 1,1-difluoro-2-(methacryloyloxy)ethanesulfonateYield 93.1%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

5-(4-(2-(1-ethylcyclopentyloxy)-2-oxoethoxy)-3,5-dimethylphenyl)-5H-dibenzo[b,d]thiophenium bromide (20.0 g, 37.1 mmol) and triethylammonium 1,1-difluoro-2-(methacryloyloxy)ethanesulfonate (1.1 eq, 40.8 mmol, 13.5 g) were dissolved in dichloromethane (250 mL) and water (250 mL) and stirred at r.t. overnight. The dichloromethane layer was separated and the aqueous phase washed with dichloromethane (3×250 mL). The combined organic layers were washed with water (4×250 mL), concentrated in vacuo and residual water removed via azeotrope with acetonitrile (2×250 mL) to afford the title compound (23.8 g, 93%) as a white solid. 1H NMR (300 MHz, (CD3)2CO) δ: 8.53 (d, J=7.8 Hz, 2H), 8.36 (d, J=7.8 Hz, 2H), 8.04 (t, J=7.5 Hz, 2H), 7.83 (t, J=7.8 Hz, 2H), 7.51 (visual s, 2H), 6.14-6.16 (m, 2H), 5.66-5.69 (m, 2H), 4.75 (dd, J=15.6, 15.6 Hz, 2H), 4.57 (s, 2H), 2.30 (s, 6H), 2.03-2.11 (m, 2H), 2.02 (q, J−7.8 Hz, 2H), 1.93-1.95 (m, 3H), 1.55-1.6 (m, 6H), 0.84 (t, J=7.5 Hz, 3H).

Workup

  1. customThe dichloromethane layer was separated
  2. washthe aqueous phase washed with dichloromethane (3×250 mL)
  3. washThe combined organic layers were washed with water (4×250 mL)
  4. concentrationconcentrated in vacuo and residual water
  5. customremoved via azeotrope with acetonitrile (2×250 mL)

Sources & evidence

ORD record
ord-ae65688f5ac64c05bbffc708bbf412fa
Source dataset
uspto-grants-2015_02
Patent number
US08945814B2

Reaction notes

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