FR2396744A1 - Procede de purification de phenylhydrazine par distillation en presence d'un glycol et nouveau produit ainsi obtenu - Google Patents

Procede de purification de phenylhydrazine par distillation en presence d'un glycol et nouveau produit ainsi obtenu

Info

Publication number
FR2396744A1
FR2396744A1 FR7820070A FR7820070A FR2396744A1 FR 2396744 A1 FR2396744 A1 FR 2396744A1 FR 7820070 A FR7820070 A FR 7820070A FR 7820070 A FR7820070 A FR 7820070A FR 2396744 A1 FR2396744 A1 FR 2396744A1
Authority
FR
France
Prior art keywords
glycol
phenylhydrazine
new product
distillation
purifying
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7820070A
Other languages
English (en)
Other versions
FR2396744B1 (fr
Inventor
Shinichi Hasegawa
Yuji Ueda
Hiroshige Tomita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Publication of FR2396744A1 publication Critical patent/FR2396744A1/fr
Application granted granted Critical
Publication of FR2396744B1 publication Critical patent/FR2396744B1/fr
Granted legal-status Critical Current

Links

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

Abstract

Procédé de purification de phénylhydrazine et nouveau produit ainsi obtenu. Dans ce procédé on distille la phénylhydrazine brute en présence d'un glycol tel que l'éthylèneglycol, le diéthylèneglycol, le triméthylèneglycol, le propylèneglycol, le tétramethyèneglycol ou le butylèneglycol; le glycol est présent en quantité de 0,1 à 5 % en poids, en se basant sur le poids de la phénylhydrazine brute. La présente invention est particulièrement utile pour fournir de la phénylhydrazine de grande pureté, avec un rendement élevé.
FR7820070A 1977-07-06 1978-07-05 Procede de purification de phenylhydrazine par distillation en presence d'un glycol et nouveau produit ainsi obtenu Granted FR2396744A1 (fr)

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
FR2396744A1 true FR2396744A1 (fr) 1979-02-02
FR2396744B1 FR2396744B1 (fr) 1981-02-06

Family

ID=13745911

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7820070A Granted FR2396744A1 (fr) 1977-07-06 1978-07-05 Procede de purification de phenylhydrazine par distillation en presence d'un glycol et nouveau produit ainsi obtenu

Country Status (7)

Country Link
US (1) US4352941A (fr)
JP (1) JPS5920665B2 (fr)
CH (1) CH639943A5 (fr)
DE (1) DE2829806A1 (fr)
FR (1) FR2396744A1 (fr)
GB (1) GB2000773B (fr)
IT (1) IT1108141B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
EXBK/ *
EXBK/08 *

Also Published As

Publication number Publication date
FR2396744B1 (fr) 1981-02-06
CH639943A5 (de) 1983-12-15
JPS5414932A (en) 1979-02-03
GB2000773B (en) 1982-01-06
IT1108141B (it) 1985-12-02
JPS5920665B2 (ja) 1984-05-15
IT7868603A0 (it) 1978-07-06
DE2829806A1 (de) 1979-01-25
US4352941A (en) 1982-10-05
GB2000773A (en) 1979-01-17
DE2829806C2 (fr) 1987-10-15

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