반응 #323285
ord-e483341d2f2b4e9e9ee294905738e732
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시약
반응 조건
후처리
- 1기타was quenched in 1 liter of dilute sodium hydroxide
- 2추출The mixture was extracted with several portions of methylene chloride
- 3추출The combined methylene chloride extract
- 4세척was washed with several portions of 1M sodium hydroxide
- 5건조dried over magnesium sulfate
- 6기타evaporated in vacuo
- 7기타to give an oil which
- 8온도was refluxed for 1.5 hr
- 9기타The reaction mixture was quenched in ice water
- 10추출extracted with several portions of methylene chloride
- 11추출The combined methylene chloride extract
- 12건조was dried over magnesium sulfate
- 13기타evaporated in vacuo
- 14기타to give an oil
실험 절차
A solution of 51.13 g (0.125 mole) of 3-phenylsulfonic acid ester with 1-[(4-methylbenzene)sulfonyl)-3-piperidinol, 25.2 g (0.175 mole) of o-chlorothiophenol and 58 g of sodium carbonate in dimethylformamide was heated at 100° C. for 19 hr and then was quenched in 1 liter of dilute sodium hydroxide. The mixture was extracted with several portions of methylene chloride. The combined methylene chloride extract was washed with several portions of 1M sodium hydroxide, dried over magnesium sulfate and evaporated in vacuo to give an oil which was shown by NMR and mass spectroscopy to be N-tosyl-3-(o-chlorothiophenoxy)piperidine. A mixture of the oil and excess phenol in 200 ml of 48% hydrobromic acid was refluxed for 1.5 hr. The reaction mixture was quenched in ice water, made basic with sodium hydroxide and extracted with several portions of methylene chloride. The combined methylene chloride extract was dried over magnesium sulfate and evaporated in vacuo to give an oil, the free base of the title compound. The free base was converted to the hydrobromic acid salt which was recrystallized from isopropanol-acetonitrile-isopropyl ether, m.p. 152.5°-154.5° C.