(9Z,12Z,15Z)-octadeca-9,12,15-trien-1-ol

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:110.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 57.0 g (0.300 mole) of 5-bromo-2-furoic acid, 119.0 g (0.450 mole) of 9,12,15-octadecatrienol, and 84.0 g (0.750 mole) of potassium tert-butoxide in dry toluene is stirred with heating. The tert-butanol formed in the reaction is allowed to distill off and the mixture is refluxed at 110° C with stirring for 48 hours. The mixture is allowed to cool, then is acidified with acetic acid and diluted with ice-water. The toluene organic layer is separated, washed with water, then extracted three times with 5% sodium bicarbonate solution. The combined aqueous extracts are cooled and acidified with 10% HCl solution to give 5-(9,12,15-octadecatrien-1-yloxy)-2-furoic acid. with heating to distill off with stirring for 48 hours to cool diluted with ice-water The toluene organic layer is separated washed with water extracted three times with 5% sodium bicarbonate solution The combined aqueous extracts are cooled

Conditions: temp:110.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 57.0 g (0.300 mole) of 5-bromo-2-furoic acid, 119.0 g (0.450 mole) of 9,12,15-octadecatrienol, and 84 g (0.750 mole) of potassium tert-butoxide in dry toluene is stirred with heating. The tert-butanol formed in the reaction is allowed to distill off, and the mixture is refluxed at 110° C. with stirring for 48 hours. The mixture is allowed to cool, then is acidified with acetic acid and diluted with ice-water. The toluene organic layer is separated, washed with water, then extracted three times with 5% sodium bicarbonate solution. The combined aqueous extracts are cooled and acidified with 10% HCl solution to give 5-(9,12,15-octadecatrien-1-yloxy)-2-furoic acid. with heating to distill off with stirring for 48 hours to cool diluted with ice-water The toluene organic layer is separated washed with water extracted three times with 5% sodium bicarbonate solution The combined aqueous extracts are cooled