Acetic Anhydride → 5-{7-[4-(4,5-Dihydro-2-oxazolyl)phenoxy]heptyl}-3-isoxazolemethanol acetate

HRID 359821Notes

Reaction equation

HRID 359821 reaction equation
[O:1]1[CH2:5][CH2:4][N:3]=[C:2]1[C:6]1[CH:26]=[CH:25][C:9]([O:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][C:18]2[O:22][N:21]=[C:20]([CH2:23][OH:24])[CH:19]=2)=[CH:8][CH:7]=1.[C:27](OC(=O)C)(=[O:29])[CH3:28]>N1C=CC=CC=1>[C:27]([O:24][CH2:23][C:20]1[CH:19]=[C:18]([CH2:17][CH2:16][CH2:15][CH2:14][CH2:13][CH2:12][CH2:11][O:10][C:9]2[CH:8]=[CH:7][C:6]([C:2]3[O:1][CH2:5][CH2:4][N:3]=3)=[CH:26][CH:25]=2)[O:22][N:21]=1)(=[O:29])[CH3:28]

Participants

4

Reactant 2

HCID 7918Acetic AnhydrideHCID 200641495-{7-[4-(4,5-Dihydro-2-oxazolyl)phenoxy]heptyl}-3-isoxazolemethanol

Product 1

HCID 537339965-{7-[4-(4,5-Dihydro-2-oxazolyl)phenoxy]heptyl}-3-isoxazolemethanol acetateYield 79.9%

Reagents, catalysts & solvents 1

HCID 1049PyridineSolvent

Procedure

A solution of 2.80 g of 5-{7-[4-(4,5-dihydro-2-oxazolyl)phenoxy]heptyl}-3-isoxazolemethanol (Example 11) and 0.82 g of acetic anhydride in pyridine was allowed to stand overnight at room temperature. The reaction mixture was poured into ice water and the solid material which formed was collected, dried and recrystallized from isopropyl alcohol to give 2.5 g of 5-{7-[4-(4,5-dihydro-2-oxazolyl)phenoxy]heptyl}-3-isoxazolemethanol acetate, colorless solid, m.p. 76°-77° C.

Workup

  1. customthe solid material which formed
  2. customwas collected
  3. customdried
  4. customrecrystallized from isopropyl alcohol

Sources & evidence

ORD record
ord-b879445a22c44e35bf88e0da91f3dd72
Source dataset
uspto-grants-1991_03
Patent number
US05002960

Reaction notes

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