IT1108141B - Procedimento per la purificazione della fenilidrazina - Google Patents
Procedimento per la purificazione della fenilidrazinaInfo
- Publication number
- IT1108141B IT1108141B IT68603/78A IT6860378A IT1108141B IT 1108141 B IT1108141 B IT 1108141B IT 68603/78 A IT68603/78 A IT 68603/78A IT 6860378 A IT6860378 A IT 6860378A IT 1108141 B IT1108141 B IT 1108141B
- Authority
- IT
- Italy
- Prior art keywords
- phenylhydrazine
- purification procedure
- purification
- procedure
- distilled
- Prior art date
Links
- HKOOXMFOFWEVGF-UHFFFAOYSA-N phenylhydrazine Chemical compound NNC1=CC=CC=C1 HKOOXMFOFWEVGF-UHFFFAOYSA-N 0.000 title abstract 3
- 229940067157 phenylhydrazine Drugs 0.000 title abstract 3
- 238000000746 purification Methods 0.000 title 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C243/00—Compounds containing chains of nitrogen atoms singly-bound to each other, e.g. hydrazines, triazanes
- C07C243/10—Hydrazines
- C07C243/22—Hydrazines having nitrogen atoms of hydrazine groups bound to carbon atoms of six-membered aromatic rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C241/00—Preparation of compounds containing chains of nitrogen atoms singly-bound to each other, e.g. hydrazines, triazanes
- C07C241/02—Preparation of hydrazines
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52081422A JPS5920665B2 (ja) | 1977-07-06 | 1977-07-06 | フエニルヒドラジンの精製方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IT7868603A0 IT7868603A0 (it) | 1978-07-06 |
| IT1108141B true IT1108141B (it) | 1985-12-02 |
Family
ID=13745911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT68603/78A IT1108141B (it) | 1977-07-06 | 1978-07-06 | Procedimento per la purificazione della fenilidrazina |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4352941A (it) |
| JP (1) | JPS5920665B2 (it) |
| CH (1) | CH639943A5 (it) |
| DE (1) | DE2829806A1 (it) |
| FR (1) | FR2396744A1 (it) |
| GB (1) | GB2000773B (it) |
| IT (1) | IT1108141B (it) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9821677D0 (en) * | 1998-10-05 | 1998-12-02 | Zeneca Ltd | Purification procedure |
| CN101220033A (zh) | 2001-01-18 | 2008-07-16 | 先灵公司 | 替莫唑胺和类似物的合成 |
| JP2012246276A (ja) * | 2011-05-31 | 2012-12-13 | Sumitomo Chemical Co Ltd | フェニルヒドラジン類の製造方法 |
| JP2012246274A (ja) * | 2011-05-31 | 2012-12-13 | Sumitomo Chemical Co Ltd | フェニルヒドラジン類の製造方法 |
| CN114082209A (zh) * | 2021-12-08 | 2022-02-25 | 启东亚太药业有限公司 | 一种负压蒸馏苯肼分离提纯设备及方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2876173A (en) * | 1955-12-13 | 1959-03-03 | Olin Mathieson | Separation of unsymmetrical dimethyl-hydrazine from aqueous solution containing not more than 20 percent of the former, caustic soda |
| US3354200A (en) * | 1960-01-05 | 1967-11-21 | Ciba Geigy Corp | 2-(1, 2, 3, 4-tetrahydronaphthyl)-hydrazines and salts thereof |
| DE1143825B (de) * | 1961-08-17 | 1963-02-21 | Hoechst Ag | Verfahren zur Herstellung von Phenylhydrazinchlorhydrat |
| US3433788A (en) * | 1966-04-27 | 1969-03-18 | Union Carbide Corp | Process for recovery of amines from aqueous solutions by solvent treatment and distillation |
-
1977
- 1977-07-06 JP JP52081422A patent/JPS5920665B2/ja not_active Expired
-
1978
- 1978-06-28 US US05/919,992 patent/US4352941A/en not_active Expired - Lifetime
- 1978-07-04 CH CH726078A patent/CH639943A5/de not_active IP Right Cessation
- 1978-07-05 FR FR7820070A patent/FR2396744A1/fr active Granted
- 1978-07-05 GB GB7828946A patent/GB2000773B/en not_active Expired
- 1978-07-06 IT IT68603/78A patent/IT1108141B/it active
- 1978-07-06 DE DE19782829806 patent/DE2829806A1/de active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| CH639943A5 (de) | 1983-12-15 |
| JPS5414932A (en) | 1979-02-03 |
| GB2000773A (en) | 1979-01-17 |
| DE2829806C2 (it) | 1987-10-15 |
| GB2000773B (en) | 1982-01-06 |
| DE2829806A1 (de) | 1979-01-25 |
| FR2396744A1 (fr) | 1979-02-02 |
| JPS5920665B2 (ja) | 1984-05-15 |
| US4352941A (en) | 1982-10-05 |
| FR2396744B1 (it) | 1981-02-06 |
| IT7868603A0 (it) | 1978-07-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19970730 |