Tetrabutylammonium Fluoride Trihydrate → benzyl (2S,3S,5R)-2-hexyl-3-hydroxy-5-[(tetrahydro-2H-pyran-2-yl)oxy]hexadecanoate

HRID 6061

Reaction equation

HRID 6061 reaction equation
[CH2:1]([C@@H:7]([C@@H:18]([O:39][Si](C(C)(C)C)(C)C)[CH2:19][C@H:20]([O:32][CH:33]1[CH2:38][CH2:37][CH2:36][CH2:35][O:34]1)[CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH2:28][CH2:29][CH2:30][CH3:31])[C:8]([O:10][CH2:11][C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1)=[O:9])[CH2:2][CH2:3][CH2:4][CH2:5][CH3:6].O.O.O.[F-].C([N+](CCCC)(CCCC)CCCC)CCC>C1COCC1>[CH2:1]([C@@H:7]([C@@H:18]([OH:39])[CH2:19][C@H:20]([O:32][CH:33]1[CH2:38][CH2:37][CH2:36][CH2:35][O:34]1)[CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH2:28][CH2:29][CH2:30][CH3:31])[C:8]([O:10][CH2:11][C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1)=[O:9])[CH2:2][CH2:3][CH2:4][CH2:5][CH3:6]

Participants

4

Reactant 2

HCID 11726816Tetrabutylammonium Fluoride TrihydrateHCID 67935903benzyl (2S,3S,5R)-2-hexyl-3-[(t-butyldimethylsilyl)oxy]-5-[(tetrahydro-2H-pyran-2-yl)oxy]hexadecanoate

Product 1

HCID 67935914benzyl (2S,3S,5R)-2-hexyl-3-hydroxy-5-[(tetrahydro-2H-pyran-2-yl)oxy]hexadecanoateYield 60.4%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

M)g) 480 mg benzyl (2S,3S,5R)-2-hexyl-3-[(t-butyldimethylsilyl)oxy]-5-[(tetrahydro-2H-pyran-2-yl)oxy]hexadecanoate and 350 mg of tetrabutylammonium fluoride trihydrate were dissolved in 8 ml of THF and stirred for 12 hours. After evaporation the residue was dissolved in 50 ml of ether and washed with water. The ethereal phase was dried and evaporated. The product was chromatographed on silica gel. There was obtained 240 mg of benzyl (2S,3S,5R)-2-hexyl-3-hydroxy-5-[(tetrahydro-2H-pyran-2-yl)oxy]hexadecanoate, MS: 463 [(M+H)+ -dihydro-2H-pyran-2-yl].

Workup

  1. customAfter evaporation the residue
  2. dissolutionwas dissolved in 50 ml of ether
  3. washwashed with water
  4. customThe ethereal phase was dried
  5. customevaporated
  6. customThe product was chromatographed on silica gel

Sources & evidence

ORD record
ord-d4da2a89a30143c9af8c5932f42a6311
Source dataset
uspto-grants-1993_09
Patent number
US05246960

Linked notes

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