Tetrahydrofuran → [4-({4-[(5-Methyl-2-phenyl-1,3-oxazol-4-yl)methoxy]phenoxy}methyl)-2-phenyl-1,3-oxazol-5-yl]methanol

HRID 2221802Notes

Reaction equation

HRID 2221802 reaction equation
[Si]([O:18][CH2:19][C:20]1[O:24][C:23]([C:25]2[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=2)=[N:22][C:21]=1[CH2:31][O:32][C:33]1[CH:38]=[CH:37][C:36]([O:39][CH2:40][C:41]2[N:42]=[C:43]([C:47]3[CH:52]=[CH:51][CH:50]=[CH:49][CH:48]=3)[O:44][C:45]=2[CH3:46])=[CH:35][CH:34]=1)(C(C)(C)C)(C1C=CC=CC=1)C1C=CC=CC=1.O1CCCC1.[F-].C([N+](CCCC)(CCCC)CCCC)CCC>O>[CH3:46][C:45]1[O:44][C:43]([C:47]2[CH:48]=[CH:49][CH:50]=[CH:51][CH:52]=2)=[N:42][C:41]=1[CH2:40][O:39][C:36]1[CH:37]=[CH:38][C:33]([O:32][CH2:31][C:21]2[N:22]=[C:23]([C:25]3[CH:26]=[CH:27][CH:28]=[CH:29][CH:30]=3)[O:24][C:20]=2[CH2:19][OH:18])=[CH:34][CH:35]=1

Participants

5

Reactant 3

HCID 8028TetrahydrofuranHCID 2724141Tetrabutylammonium FluorideHCID 692168795-(Tert-butyldiphenylsilyloxymethyl)-4-[[4-[(5-methyl-2-phenyl-1,3-oxazol-4-yl)methoxy]phenoxy]methyl]-2-phenyl-1,3-oxazole

Product 1

HCID 69216899[4-({4-[(5-Methyl-2-phenyl-1,3-oxazol-4-yl)methoxy]phenoxy}methyl)-2-phenyl-1,3-oxazol-5-yl]methanolYield 59%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

To a mixture of 5-(tert-butyldiphenylsilyloxymethyl)-4-[[4-[(5-methyl-2-phenyl-1,3-oxazol-4-yl)methoxy]phenoxy]methyl]-2-phenyl-1,3-oxazole (1.44 g) and tetrahydrofuran (30 mL) was added tetrabutylammonium fluoride (1M tetrahydrofuran solution, 5 mL) at 0° C., and the mixture was stirred at room temperature for 30 min. Water was added to the reaction mixture and extracted with ethyl acetate. The ethyl acetate layer was washed with saturated brine, dried over anhydrous magnesium sulfate and concentrated. The residue was subjected to silica gel column chromatography to give [4-({4-[(5-methyl-2-phenyl-1,3-oxazol-4-yl)methoxy]phenoxy}methyl)-2-phenyl-1,3-oxazol-5-yl]methanol as colorless crystals (0.55 g, yield 59%) from a fraction eluted with ethyl acetate-hexane (2:1, v/v). Recrystallization from ethyl acetate-hexane gave colorless prism crystals. melting point: 157-158° C.

Workup

  1. extractionextracted with ethyl acetate
  2. washThe ethyl acetate layer was washed with saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. concentrationconcentrated

Sources & evidence

ORD record
ord-86fc8c109f714b80bd43b9aec3e93df6
Source dataset
uspto-grants-2008_05
Patent number
US07368578B2

Reaction notes

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