HU192035B - Process for production of ftalimid and tetrahydroftalimid - Google Patents

Process for production of ftalimid and tetrahydroftalimid Download PDF

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Publication number
HU192035B
HU192035B HU842328A HU232884A HU192035B HU 192035 B HU192035 B HU 192035B HU 842328 A HU842328 A HU 842328A HU 232884 A HU232884 A HU 232884A HU 192035 B HU192035 B HU 192035B
Authority
HU
Hungary
Prior art keywords
urea
anhydride
reaction
added
preparation
Prior art date
Application number
HU842328A
Other languages
English (en)
Hungarian (hu)
Inventor
Tamas Reti
Attilane Horvath
Pal Meszaros
Laszlo Szell
Huba Kovacs
Laszlo Legradi
Gabor Toth
Original Assignee
Nitrokemia Ipartelepek
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 Nitrokemia Ipartelepek filed Critical Nitrokemia Ipartelepek
Priority to HU842328A priority Critical patent/HU192035B/hu
Priority to IL75199A priority patent/IL75199A0/xx
Priority to DE19853518619 priority patent/DE3518619A1/de
Priority to FR8508037A priority patent/FR2565975B1/fr
Priority to DD85277208A priority patent/DD234002A5/de
Priority to YU00990/85A priority patent/YU99085A/xx
Priority to SU853909600A priority patent/SU1355124A3/ru
Priority to RO119176A priority patent/RO92318B/ro
Priority to BG070701A priority patent/BG43864A3/xx
Priority to JP60130066A priority patent/JPS6112661A/ja
Priority to CS854451A priority patent/CS250691B2/cs
Publication of HU192035B publication Critical patent/HU192035B/hu

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D209/02—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring
    • C07D209/44—Iso-indoles; Hydrogenated iso-indoles
    • C07D209/48—Iso-indoles; Hydrogenated iso-indoles with oxygen atoms in positions 1 and 3, e.g. phthalimide

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Indole Compounds (AREA)
  • Pyrrole Compounds (AREA)

Abstract

Die Erfindung betrifft ein Verfahren zur Herstellung von cyclischen Dicarbonsaeureimiden durch Umsetzung von cyclischen Dicarbonsaeureanhydriden und Harnstoff ohne Loesungsmittel und ohne den Einsatz von Harnstoff in Ueberschuss. Ziel und Aufgabe der Erfindung ist es, die Reinheit und die Ausbeute bei derartigen Verfahren zu erhoehen und Umweltbelastungen erheblich zu verringern. Erfindungsgemaess wird die gestellte Aufgabe dadurch geloest, dass man in das geschmolzene Dicarbonsaeureanhydrid den Harnstoff stufenweise einfuehrt, wobei das Reaktionsgemisch staendig sauer gehalten wird und man die waehrend der Reaktion entstehenden substituierenden Gase und Daempfe aufnimmt und nach ihrer Regenerierung in das Reaktionsgemisch zurueckfuehrt.
HU842328A 1984-06-18 1984-06-18 Process for production of ftalimid and tetrahydroftalimid HU192035B (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
HU842328A HU192035B (en) 1984-06-18 1984-06-18 Process for production of ftalimid and tetrahydroftalimid
IL75199A IL75199A0 (en) 1984-06-18 1985-05-15 Preparation of cyclic dicarboxylic acid imides
DE19853518619 DE3518619A1 (de) 1984-06-18 1985-05-23 Verfahren zur herstellung von cyclischen dicarbonsaeureimiden
FR8508037A FR2565975B1 (fr) 1984-06-18 1985-05-29 Procede de preparation d'imides d'acide dicarboxylique cyclique
DD85277208A DD234002A5 (de) 1984-06-18 1985-06-10 Verfahren zur herstellung von cyclischen dicarbonsaeure-imiden
YU00990/85A YU99085A (en) 1984-06-18 1985-06-13 Process for preaparation of cyclical imida dicarbonic acids
SU853909600A SU1355124A3 (ru) 1984-06-18 1985-06-17 Способ получени фталимида или тетрагидрофталимида
RO119176A RO92318B (ro) 1984-06-18 1985-06-17 Procedeu pentru prepararea de imide ciclice de acizi dicarboxilici
BG070701A BG43864A3 (en) 1984-06-18 1985-06-17 Method for preparing of imides of cyclic dicarbonic acids
JP60130066A JPS6112661A (ja) 1984-06-18 1985-06-17 環状ジカルボン酸イミドの調製方法
CS854451A CS250691B2 (en) 1984-06-18 1985-06-18 Method of dicarboxyl acids' cyclic imides production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HU842328A HU192035B (en) 1984-06-18 1984-06-18 Process for production of ftalimid and tetrahydroftalimid

Publications (1)

Publication Number Publication Date
HU192035B true HU192035B (en) 1987-04-28

Family

ID=10958856

Family Applications (1)

Application Number Title Priority Date Filing Date
HU842328A HU192035B (en) 1984-06-18 1984-06-18 Process for production of ftalimid and tetrahydroftalimid

Country Status (11)

Country Link
JP (1) JPS6112661A (de)
BG (1) BG43864A3 (de)
CS (1) CS250691B2 (de)
DD (1) DD234002A5 (de)
DE (1) DE3518619A1 (de)
FR (1) FR2565975B1 (de)
HU (1) HU192035B (de)
IL (1) IL75199A0 (de)
RO (1) RO92318B (de)
SU (1) SU1355124A3 (de)
YU (1) YU99085A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110804011A (zh) * 2019-11-12 2020-02-18 内蒙古科迈化工有限公司 一种邻苯二甲酰亚胺合成方法
CN111454196A (zh) * 2020-05-12 2020-07-28 河南源博新材料有限公司 一种顺式-1,2,3,6-四氢邻苯二甲酰亚胺的生产合成方法
CN115353481B (zh) * 2022-08-31 2024-03-29 宁夏格瑞精细化工有限公司 一种顺式-1,2,3,6-四氢邻苯二甲酰亚胺的催化合成方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3819648A (en) * 1971-11-12 1974-06-25 Dawe Labor Inc S Production of phthalimide

Also Published As

Publication number Publication date
YU99085A (en) 1987-10-31
IL75199A0 (en) 1985-09-29
JPS6112661A (ja) 1986-01-21
SU1355124A3 (ru) 1987-11-23
BG43864A3 (en) 1988-08-15
FR2565975B1 (fr) 1988-08-26
DD234002A5 (de) 1986-03-19
RO92318A (ro) 1987-08-31
FR2565975A1 (fr) 1985-12-20
RO92318B (ro) 1987-09-01
CS250691B2 (en) 1987-05-14
DE3518619A1 (de) 1985-12-19

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Legal Events

Date Code Title Description
HU90 Patent valid on 900628
HPC4 Succession in title of patentee

Owner name: NITROKEMIA 2000 IPARI ES VAGYONKEZELOE RT., HU

HMM4 Cancellation of final prot. due to non-payment of fee