Sodium Imidazole → HCID 67804705, compound

HRID 863184Notes

Reaction equation

HRID 863184 reaction equation
[CH3:1][O:2][C@@H:3]1[C@:8]2([O:10][CH2:9]2)[C@H:7](/[CH:11]=[CH:12]/[CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH3:19])[O:6][CH2:5][C@@H:4]1[CH3:20].[CH:21]1[N-:25][CH:24]=[N:23][CH:22]=1.[Na+]>CN(C)C=O.O>[N:23]1([CH2:9][C@:8]2([OH:10])[C@@H:3]([O:2][CH3:1])[C@@H:4]([CH3:20])[CH2:5][O:6][C@H:7]2/[CH:11]=[CH:12]/[CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH3:19])[CH:22]=[CH:21][N:25]=[CH:24]1

Participants

5

Reactant 2

HCID 4605971Sodium ImidazoleHCID 22855995HCID 22855995, compound

Product 1

HCID 67804705HCID 67804705, compoundYield 79%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

A mixture of (3S,4S,7S,8S)-8-methoxy-7-methyl-4-[(E)-1-nonenyl]-1,5-dioxaspiro[2,5]octane (4.2 mg) and imidazole sodium derivative (14.0 mg) in dry N,N-dimethylformamide (0.5 ml) was stirred for 15 hours at room temperature. The reaction mixture was diluted with water. The mixture was extracted with dietyl ether, the combined ethereal extracts were washed with brine, dried over anhydrous sodium sulfate, filtered and concentrated. Purification of the residue by preparative thin layer chromatography (ethyl acetate as an eluent) gave (2S,3S,4S, 5S)-3-(1H-imidazol-1-ylmethyl)-4-methoxy-5-methyl-2-[(E)-1-nonenyl]tetrahydro-2H-pyran-3-ol (4.1 mg, y. 79%) as colorless oil; EI-MS: m/z 351 (M+); 1H-NMR (CDCl3)d: 0.88 (3H,t,J=8 Hz), 1.10 (3H,d,J=7 Hz), 1.2-1.5 (10H,m), 2.1 (3H,m), 2.39 (1H,br.s, --OH), 2.93 (1H,d,J=5 Hz), 3.39 (3H,s), 3.40 (1H,dd,J=3 & 12 Hz), 3.61 (1H,d,J=8 Hz), 3.76 (1H,dd,J=4 & 12 Hz), 3.96 (1H,d,J=14 Hz), 4.13 (1H,d,J=14 Hz), 5.87 (2H,m), 6.91 (1H,s), 7r14(1H,s), 7.46 (1H,s).

Workup

  1. extractionThe mixture was extracted with dietyl ether
  2. washthe combined ethereal extracts were washed with brine
  3. dry with materialdried over anhydrous sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customPurification of the residue by preparative thin layer chromatography (ethyl acetate as an eluent)

Sources & evidence

ORD record
ord-c9bcf7f3bc5c4e71afc7115e3ca17c5f
Source dataset
uspto-grants-1998_02
Patent number
US05719291

Reaction notes

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