Methanol → 9-Decenoxybenzyl bromide

Participants

Reaction Conditions

Reaction Steps

First, 16.05 g (0.061 M) of 9-decenoxybenzyl alcohol (compound (23)) prepared in Synthetic example 1-2 was dissolved in 85 mL of diethyl ether, and the solution was cooled to 0° C. After cooling, 6.76 g (0.022 M) of phosphorus tribromide (compound (21)) was added dropwise thereto at 5° C. or less. The mixture was aged at 5° C. for 2 hours and then at 15° C. for 1.5 hours. After aging, the solution was cooled to 50° C. Then, 38 mL of methanol was added dropwise at 50° C. or less. After dropwise addition, 73.4 g of a sodium hydrogen carbonate aqueous solution (1 M) was added dropwise at 10° C. or less, and then phase separation was performed. After the separation, the separated organic layer was washed with 32 mL of deionized water and then concentrated. Thereby, 18.19 g of 9-decenoxybenzyl bromide (compound (24)) was produced (yield: 91.6%).

Provenance & Evidence