反应详情

To 2.8 g of p-(9-decenyloxy)benzoic acid prepared in the same manner as in 9.(2) in Example 9 added was toluene, and the resulting mixture was cooled in an ice bath. 5.0 g of thionyl chloride was then added dropwise to the toluene solution. Reaction was then carried out for 7 hours at 80° C. After conclusion of the reaction, the reaction solution was concentrated under reduced pressure, to obtain crude p-decenyloxybenzoyl chloride. 1.6 g of the hydroxy compound obtained in 17.(1) and 3.3 g of pyridine were dissolved in toluene, and the resulting toluene solution was cooled in an ice bath. A toluene solution containing the above crude p-decenyloxybenzoyl chloride was added dropwise into the toluene solution. Subsequently, reaction was carried out for 5 hours at 50° C. After conclusion of the reaction, the reaction solution was washed with water and dried over magnesium sulfate, and the solvent was distilled out under reduced pressure. The residue was purified by column chromatography, to obtain 2.0 g of the objective alkene compound. (Yield: 69%)

1. additionadded
2. temperaturethe resulting mixture was cooled in an ice bath
3. customReaction
4. customAfter conclusion of the reaction
5. concentrationthe reaction solution was concentrated under reduced pressure