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Imidazole → N-(4-(((tert-butyldiphenylsilyl)oxy)methyl)-2-iodo-5-(methylthio)phenyl)methanesulfonamide

HRID 1051829
Notes
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Reaction equation

HRID 1051829 reaction equation
[OH:1][CH2:2][C:3]1[C:8]([S:9][CH3:10])=[CH:7][C:6]([NH:11][S:12]([CH3:15])(=[O:14])=[O:13])=[C:5]([I:16])[CH:4]=1.N1C=CN=C1.[Si:22](Cl)([C:35]([CH3:38])([CH3:37])[CH3:36])([C:29]1[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=1)[C:23]1[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=1>C(Cl)Cl.CN(C=O)C>[Si:22]([O:1][CH2:2][C:3]1[C:8]([S:9][CH3:10])=[CH:7][C:6]([NH:11][S:12]([CH3:15])(=[O:13])=[O:14])=[C:5]([I:16])[CH:4]=1)([C:35]([CH3:38])([CH3:37])[CH3:36])([C:29]1[CH:30]=[CH:31][CH:32]=[CH:33][CH:34]=1)[C:23]1[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 3

HCID 795ImidazoleHCID 94078tert-ButyldiphenylchlorosilaneHCID 89814728N-(4-(hydroxymethyl)-2-iodo-5-(methylthio)phenyl)methanesulfonamide

Product 1

HCID 89814652N-(4-(((tert-butyldiphenylsilyl)oxy)methyl)-2-iodo-5-(methylthio)phenyl)methanesulfonamide

Reagents, catalysts & solvents 2

HCID 6228Dimethylformamide
Solvent
HCID 6344DichloromethaneSolvent2×

Procedure

To a stirred solution of N-(4-(hydroxymethyl)-2-iodo-5-(methylthio)phenyl)methanesulfonamide (6.4 g, 17.2 mmol) and imidazole (1.76 g, 25.8 mmol) in CH2Cl2 (100 mL) and DMF (50 mL) at 0° C. was added tert-butyldiphenylsilyl chloride (5.8 mL, 22.4 mmol). The mixture was allowed to stir at rt overnight. The mixture was diluted with CH2Cl2 (100 mL), washed with 1N HCl solution, sat. aq. NaHCO3 and brine, dried over anhydrous Na2SO4, filtered and concentrated in vacuo to afford N-(4-(((tert-butyldiphenylsilyl)oxy)methyl)-2-iodo-5-(methylthio)phenyl)methanesulfonamide. It was used for next step without further purification.

Workup

  1. washwashed with 1N HCl solution, sat. aq. NaHCO3 and brine
  2. dry with materialdried over anhydrous Na2SO4
  3. filtrationfiltered
  4. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-c4394afee81d410d877e32123a24ab04
Source dataset
uspto-grants-2016_07
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09388190B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes