Toluene → HCID 22841014, compound

HRID 414778Notes

Reaction equation

HRID 414778 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-benzyloxymethyl-3-hydroxytetrahydropyran (prepared as described in Preparation 9), 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. The reaction mixture was cooled and then poured into water. The water layer was extracted twice with diethyl ether. The organic layer and the extracts were combined, washed with water, dried 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. temperatureThe reaction mixture was cooled
  3. extractionThe water layer was extracted twice with diethyl ether
  4. washwashed with water
  5. customdried
  6. customcondensed
  7. customby evaporation under reduced pressure
  8. washThe fraction eluted with a 1:10 by volume mixture of diethyl ether and hexane

Sources & evidence

ORD record
ord-06ca8ad9268c4c45a2f4b81c14c5ba6c
Source dataset
uspto-grants-1988_12
Patent number
US04794183

Reaction notes

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