Toluene → HCID 22841014, compound

HRID 329514Notes

Reaction equation

HRID 329514 reaction equation
[CH2:1]([O:8][CH2:9][C@H:10]1[C@@H:15]([OH:16])[CH2:14][CH2:13][CH2:12][O:11]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH2:17](Br)[CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH2:28][CH2:29][CH2:30][CH2:31][CH3:32].[OH-].[K+].C1(C)C=CC=CC=1>O>[CH2:1]([O:8][CH2:9][C@H:10]1[C@@H:15]([O:16][CH2:32][CH2:31][CH2:30][CH2:29][CH2:28][CH2:27][CH2:26][CH2:25][CH2:24][CH2:23][CH2:22][CH2:21][CH2:20][CH2:19][CH2:18][CH3:17])[CH2:14][CH2:13][CH2:12][O:11]1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

6

Reactant 4

HCID 1140TolueneHCID 82131-BromohexadecaneHCID 14797Potassium HydroxideHCID 22841016HCID 22841016, compound

Product 1

HCID 22841014HCID 22841014, compound

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Conditions

Temperature
120 °C

Procedure

A mixture of 1.037 g of dl-cis-2-benzyloxymethyltetrahydropyran-3-ol (prepared as described in Preparation 33), 1.709 g of hexadecyl bromide, 0.77 g of potassium hydroxide and 15 ml of toluene was heated, with stirring, at 120° C. for 10 hours. At the end of this time, the reaction mixture was cooled and then poured into water. The aqueous layer was extracted twice with diethyl ether. The organic layer and the extracts were combined, washed with water, dried over anhydrous magnesium sulfate and condensed by evaporation under reduced pressure. The resulting oily residue (3.3 g) was subjected to column chromatography through 50 g of silica gel. The fraction eluted with a 1:10 by volume mixture of diethyl ether and hexane gave 1.455 g of the title compound as a colorless oily substance.

Workup

  1. temperaturewas heated
  2. temperatureAt the end of this time, the reaction mixture was cooled
  3. extractionThe aqueous layer was extracted twice with diethyl ether
  4. washwashed with water
  5. dry with materialdried over anhydrous magnesium sulfate and condensed by evaporation under reduced pressure
  6. washThe fraction eluted with a 1:10 by volume mixture of diethyl ether and hexane

Sources & evidence

ORD record
ord-f727afdebb8241899a9b99fb021713ec
Source dataset
uspto-grants-1990_01
Patent number
US04891363

Reaction notes

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