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bis(trichloromethyl) carbonate
1-(2-phenylethyl)-4-aminomethyl-4-piperidinol
fenspiride
Conditions | Yield |
---|---|
In dichloromethane for 2h; Ambient temperature; | 69% |
1-(2-phenylethyl)-4-aminomethyl-4-piperidinol
Diethyl carbonate
fenspiride
Conditions | Yield |
---|---|
With sodium ethanolate In ethanol Heating; |
1-(2-phenylethyl)-4-piperidinone
fenspiride
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: ZnI2 / 1.) 0 deg C, 3 h, 2.) 60 deg C, 3 h 2: LiAlH4 / diethyl ether / 2 h 3: 69 percent / CH2Cl2 / 2 h / Ambient temperature View Scheme |
1-(2-phenethyl)-4-cyano-4-trimethylsilyloxypiperidine
fenspiride
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: LiAlH4 / diethyl ether / 2 h 2: 69 percent / CH2Cl2 / 2 h / Ambient temperature View Scheme |
fenspiride
Conditions | Yield |
---|---|
With perfluoro-cis-2-n-hexyl-3-n-pentyloxaziridine; HCFC-225ca,cb In dichloromethane at -60℃; for 0.333333h; | 94% |
fenspiride
Conditions | Yield |
---|---|
Stage #1: fenspiride With water-d2; lithium carbonate; triisopropylsilanethiol In 1-methyl-pyrrolidin-2-one at 20℃; Irradiation; Stage #2: With hydrogenchloride In 1-methyl-pyrrolidin-2-one | 71% |
Conditions | Yield |
---|---|
Stage #1: fenspiride With dihydrogen peroxide; C40H36F12MnN6(2+)*2F6Sb(1-); acetic acid In dichloromethane; acetonitrile at -36℃; for 1h; Stage #2: trimethylaluminum With diethylamino-sulfur trifluoride In dichloromethane at -78 - 20℃; for 3h; regioselective reaction; | 24% |
fenspiride
Conditions | Yield |
---|---|
With tritium oxide In 1-methyl-pyrrolidin-2-one at 20℃; Irradiation; |
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