CA2095970A1 - Novel high-temperature dehydrogenation process - Google Patents

Novel high-temperature dehydrogenation process

Info

Publication number
CA2095970A1
CA2095970A1 CA002095970A CA2095970A CA2095970A1 CA 2095970 A1 CA2095970 A1 CA 2095970A1 CA 002095970 A CA002095970 A CA 002095970A CA 2095970 A CA2095970 A CA 2095970A CA 2095970 A1 CA2095970 A1 CA 2095970A1
Authority
CA
Canada
Prior art keywords
calculated
weight
novel high
temperature dehydrogenation
dehydrogenation process
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
CA002095970A
Other languages
French (fr)
Other versions
CA2095970C (en
Inventor
Beat M. Aebli
Daniel Monti
Milos Rusek
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.)
Novartis AG
Original Assignee
Ciba Geigy AG
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 Ciba Geigy AG filed Critical Ciba Geigy AG
Publication of CA2095970A1 publication Critical patent/CA2095970A1/en
Application granted granted Critical
Publication of CA2095970C publication Critical patent/CA2095970C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D223/00—Heterocyclic compounds containing seven-membered rings having one nitrogen atom as the only ring hetero atom
    • C07D223/14—Heterocyclic compounds containing seven-membered rings having one nitrogen atom as the only ring hetero atom condensed with carbocyclic rings or ring systems
    • C07D223/18—Dibenzazepines; Hydrogenated dibenzazepines
    • C07D223/22—Dibenz [b, f] azepines; Hydrogenated dibenz [b, f] azepines

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Other In-Based Heterocyclic Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Inorganic Insulating Materials (AREA)
  • Organic Insulating Materials (AREA)
  • Detergent Compositions (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Steroid Compounds (AREA)
  • Liquid Crystal Substances (AREA)

Abstract

The invention relates to a novel process for the preparation of iminostilbene by high-temperature dehydrogenation of iminodibenzyl on an iron oxide/potassium salt contact catalyst in the vapour phase, wherein there is used an iron oxide/potassium salt contact catalyst comprising from 35 to 90 % by weight of an iron compound, calculated as Fe2O3, and from 7 to 35 % by weight of a potassium compound, calculated as K2O, in addition to from 0.0 to 3.5 % by weight of a chromium compound, calculated as Cr2O3, and optionally customary promotors.
CA002095970A 1992-05-13 1993-05-11 Novel high-temperature dehydrogenation process Expired - Lifetime CA2095970C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH153592 1992-05-13
CH1535/92-0 1992-05-13

Publications (2)

Publication Number Publication Date
CA2095970A1 true CA2095970A1 (en) 1993-11-14
CA2095970C CA2095970C (en) 2005-03-22

Family

ID=4212700

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002095970A Expired - Lifetime CA2095970C (en) 1992-05-13 1993-05-11 Novel high-temperature dehydrogenation process

Country Status (21)

Country Link
EP (1) EP0570336B1 (en)
JP (1) JP3645279B2 (en)
KR (1) KR100364041B1 (en)
CN (1) CN1054125C (en)
AT (1) ATE198885T1 (en)
AU (1) AU663580B2 (en)
CA (1) CA2095970C (en)
DE (1) DE59310141D1 (en)
DK (1) DK0570336T3 (en)
ES (1) ES2154268T3 (en)
FI (1) FI105027B (en)
GR (1) GR3035480T3 (en)
HU (1) HU214775B (en)
IL (1) IL105678A (en)
MX (1) MX9302768A (en)
MY (1) MY109264A (en)
NO (1) NO304737B1 (en)
NZ (1) NZ247594A (en)
PT (1) PT570336E (en)
RU (1) RU2126795C1 (en)
ZA (1) ZA933303B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT401772B (en) * 1994-12-27 1996-11-25 Chemie Linz Gmbh METHOD FOR PURIFYING 5H-DIBENZO- (B, F) -AZEPINE
CN101307021B (en) * 2008-07-04 2010-06-23 浙江工业大学 Chemical synthesis process for iminostilbene
CN103055844B (en) * 2013-01-16 2015-01-14 湖北工业大学 Preparation method for catalyst composition for efficiently treating methylene blue dye wastewater
CN104059015A (en) * 2014-06-30 2014-09-24 江苏飞亚化学工业有限责任公司 Method for synthesizing carbazole by fixed bed process

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US344932A (en) * 1886-07-06 backus
CH442319A (en) * 1964-09-23 1967-08-31 Geigy Ag J R Process for the technically economical production of 5H-dibenz (b, f) azepines
DE1545736A1 (en) * 1965-05-14 1970-07-16 Degussa Process for the preparation of 5-dibenzo- (b, f) -azepine
US3437703A (en) * 1966-05-05 1969-04-08 Foster Grant Co Inc Catalytic dehydrogenation process and compositions
JPS5517330A (en) * 1978-07-25 1980-02-06 Fuji Yakuhin Kogyo Kk Preparation of 5h-dibenzo-(b,f)-azepin
FI74276C (en) * 1986-03-14 1988-01-11 Orion Yhtymae Oy A new process for the preparation of 5H-Dibenzo-(b, f) -azepine.
HU206682B (en) * 1989-05-04 1992-12-28 Alkaloida Vegyeszeti Gyar Improved process for producing 5h-dibenz/b,f/azepine

Also Published As

Publication number Publication date
KR940005559A (en) 1994-03-21
NO931727L (en) 1993-11-15
FI932116A (en) 1993-11-14
NZ247594A (en) 1996-02-27
AU3711193A (en) 1993-11-18
KR100364041B1 (en) 2003-04-16
CN1080285A (en) 1994-01-05
EP0570336A2 (en) 1993-11-18
RU2126795C1 (en) 1999-02-27
MX9302768A (en) 1994-02-28
ZA933303B (en) 1993-11-15
HUT68568A (en) 1995-06-28
GR3035480T3 (en) 2001-05-31
MY109264A (en) 1996-12-31
IL105678A0 (en) 1993-09-22
AU663580B2 (en) 1995-10-12
JP3645279B2 (en) 2005-05-11
DK0570336T3 (en) 2001-02-26
NO304737B1 (en) 1999-02-08
HU214775B (en) 1998-05-28
EP0570336A3 (en) 1994-04-13
CA2095970C (en) 2005-03-22
JPH0656791A (en) 1994-03-01
EP0570336B1 (en) 2001-01-24
FI932116A0 (en) 1993-05-10
FI105027B (en) 2000-05-31
IL105678A (en) 1998-01-04
DE59310141D1 (en) 2001-03-01
ATE198885T1 (en) 2001-02-15
CN1054125C (en) 2000-07-05
HU9301380D0 (en) 1993-09-28
NO931727D0 (en) 1993-05-12
ES2154268T3 (en) 2001-04-01
PT570336E (en) 2001-05-31

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