反应详情

Mix 9-bromononanyl isopropyl ether (730 mg, 2.75 mmol) and piperidine (1 mL, 10 mmol) and stir at room temperature overnight. Add additional piperidine (5 mL) and heat at 100° C. for 4 hours. Partition between ethyl ether and 5N sodium hydroxide. Separate the organic phase and extract the aqueous phase with ethyl ether (2×30 mL). Combine the organic phases and dry (MgSO4). Evaporate the solvent in vacuo to yield 510 mg yellow oil. Purify by silica gel chromatography (ethyl acetate followed by 10% MeOH/ethyl acetate) to yield 380 mg (51%) of the title compound as a pale yellow oil.

1. temperatureheat at 100° C. for 4 hours
2. customPartition between ethyl ether and 5N sodium hydroxide
3. customSeparate the organic phase
4. extractionextract the aqueous phase with ethyl ether (2×30 mL)
5. dry with materialCombine the organic phases and dry (MgSO4)
6. customEvaporate the solvent in vacuo