IT1046052B - 1-Aralkyl-4-aminomethyl-piperidin-4-ols prepn - by redn of corresp. 4-nitromethyl-piperidine-4-ols - Google Patents
1-Aralkyl-4-aminomethyl-piperidin-4-ols prepn - by redn of corresp. 4-nitromethyl-piperidine-4-olsInfo
- Publication number
- IT1046052B IT1046052B IT3006973A IT3006973A IT1046052B IT 1046052 B IT1046052 B IT 1046052B IT 3006973 A IT3006973 A IT 3006973A IT 3006973 A IT3006973 A IT 3006973A IT 1046052 B IT1046052 B IT 1046052B
- Authority
- IT
- Italy
- Prior art keywords
- ols
- redn
- corresp
- aralkyl
- nitromethyl
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D211/00—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings
- C07D211/04—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D211/06—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members
- C07D211/36—Heterocyclic compounds containing hydrogenated pyridine rings, not condensed with other rings with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D211/40—Oxygen atoms
- C07D211/44—Oxygen atoms attached in position 4
- C07D211/48—Oxygen atoms attached in position 4 having an acyclic carbon atom attached in position 4
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Hydrogenated Pyridines (AREA)
Abstract
The title cpds. of formula (I): (where R is benzyl or phenethyl) are obtd. by redn. of cpds. of formula (II), which are themselves prepd. by reaction of the corresp. 1-aralkyl-4-piperidones (III) with nitromethane. Yields of >90% are obtd. (III) is converted to (II) by reaction with nitromethane is absolute C2H5OH at room temp. (II) is reduced with Zn in a mineral acide, e.g. HCl or H2SO4 in alcoholic medium, and (I) is obtd. in the form of an addn. cpd. of formula (I). ZnCl2.2HCl (II) are new cpds.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT3006973A IT1046052B (en) | 1973-10-12 | 1973-10-12 | 1-Aralkyl-4-aminomethyl-piperidin-4-ols prepn - by redn of corresp. 4-nitromethyl-piperidine-4-ols |
BE147274A BE818471A (en) | 1973-10-12 | 1974-08-02 | PROCESS FOR PREPARING 1-ARALKYL-4-AMINO-METHYLPIPERIDINE-4-OLS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT3006973A IT1046052B (en) | 1973-10-12 | 1973-10-12 | 1-Aralkyl-4-aminomethyl-piperidin-4-ols prepn - by redn of corresp. 4-nitromethyl-piperidine-4-ols |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1046052B true IT1046052B (en) | 1980-06-30 |
Family
ID=11228970
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT3006973A IT1046052B (en) | 1973-10-12 | 1973-10-12 | 1-Aralkyl-4-aminomethyl-piperidin-4-ols prepn - by redn of corresp. 4-nitromethyl-piperidine-4-ols |
Country Status (2)
Country | Link |
---|---|
BE (1) | BE818471A (en) |
IT (1) | IT1046052B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH652713A5 (en) * | 1981-01-28 | 1985-11-29 | Sandoz Ag | 4-AMINOMETHYL-POLYMETHYLPIPERIDINE. |
TW402591B (en) * | 1997-07-11 | 2000-08-21 | Janssen Pharmaceutica Nv | Monocyclic benzamides of 3- or 4-substituted 4-(aminomethyl)-piperidine derivatives |
CN102766147B (en) * | 2012-08-03 | 2015-07-15 | 无锡药兴医药科技有限公司 | Method for preparing fenspiride and halogen acid salt thereof |
-
1973
- 1973-10-12 IT IT3006973A patent/IT1046052B/en active
-
1974
- 1974-08-02 BE BE147274A patent/BE818471A/en unknown
Also Published As
Publication number | Publication date |
---|---|
BE818471A (en) | 1974-12-02 |
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