Tetrabutylammonium Fluoride → 2-Fluoro-5-[(4-hydroxymethyl-phenyl)-(tetrahydro-pyran-2-yloxy)-methyl]-benzonitrile

HRID 1818485Notes

Reaction equation

HRID 1818485 reaction equation
[F-].C([N+](CCCC)(CCCC)CCCC)CCC.C([SiH2][O:24][C:25](C)(C)[C:26]1[CH:31]=[CH:30][C:29]([CH:32]([O:42][CH:43]2[CH2:48][CH2:47][CH2:46][CH2:45][O:44]2)[C:33]2[CH:34]=[CH:35][C:36]([F:41])=[C:37]([CH:40]=2)[C:38]#[N:39])=[CH:28][CH:27]=1)(C)(C)C>ClCCl>[F:41][C:36]1[CH:35]=[CH:34][C:33]([CH:32]([C:29]2[CH:28]=[CH:27][C:26]([CH2:25][OH:24])=[CH:31][CH:30]=2)[O:42][CH:43]2[CH2:48][CH2:47][CH2:46][CH2:45][O:44]2)=[CH:40][C:37]=1[C:38]#[N:39]

Participants

4

Reactant 2

HCID 2724141Tetrabutylammonium FluorideHCID 1373294185-[[4-(Tert-butyl-dimethyl-silanyloxymethyl)-phenyl]-(tetrahydro-pyran-2-yloxy)-methyl]-2-fluoro-benzonitrile

Product 1

HCID 666995842-Fluoro-5-[(4-hydroxymethyl-phenyl)-(tetrahydro-pyran-2-yloxy)-methyl]-benzonitrileYield 99%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

Add tetrabutylammonium fluoride (1.0M in tetrahydrofuran, 5.27 mL, 5.27 mmol) to 5-[[4-(tert-butyl-dimethyl-silanyloxymethyl)-phenyl]-(tetrahydro-pyran-2-yloxy)-methyl]-2-fluoro-benzonitrile (1.20 g, 2.64 mmol) and stir the solution overnight. Dilute with dichloromethane and wash with water and brine. Dry the organic layer and concentrate the solution to afford the title compound (0.890 g, 2.60 mmol, 99%, mixture of diastereomers): 1H NMR (400 MHz, CDCl3) δ 1.55 (m, 2H), 1.68 (m, 2H), 1.74 (m, 2H), 3.46 (m, 1H), 3.77 (m, 1H), 4.60 (m, 1H), 4.67 (s, 2H), 5.78 (s, 1H), 7.10 (m, 1H), 7.27 (m, 4H), 7.55 (m, 1H), 7.64 (m, 1H).

Workup

  1. washwash with water and brine
  2. customDry the organic layer
  3. concentrationconcentrate the solution

Sources & evidence

ORD record
ord-19ee5855745f4e6daf2ec934838651cc
Source dataset
uspto-grants-2009_10
Patent number
US07598423B2

Reaction notes

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