IL76989A - Preparation of alkyl and aryl isocyanates by oxidative dehydrogenation of the corresponding formamides in the presence of a silver catalyst - Google Patents
Preparation of alkyl and aryl isocyanates by oxidative dehydrogenation of the corresponding formamides in the presence of a silver catalystInfo
- Publication number
- IL76989A IL76989A IL76989A IL7698985A IL76989A IL 76989 A IL76989 A IL 76989A IL 76989 A IL76989 A IL 76989A IL 7698985 A IL7698985 A IL 7698985A IL 76989 A IL76989 A IL 76989A
- Authority
- IL
- Israel
- Prior art keywords
- alkyl
- preparation
- oxidative dehydrogenation
- silver catalyst
- aryl isocyanates
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C263/00—Preparation of derivatives of isocyanic acid
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C263/00—Preparation of derivatives of isocyanic acid
- C07C263/12—Preparation of derivatives of isocyanic acid from or via nitrogen analogues of carboxylic acids, e.g. from hydroxamic acids, involving a Hofmann, Curtius or Lossen-type rearrangement
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/669,850 US4537726A (en) | 1984-11-09 | 1984-11-09 | Multi-stage process with adiabatic reactors for the preparation of isocyanates |
Publications (2)
Publication Number | Publication Date |
---|---|
IL76989A0 IL76989A0 (en) | 1986-04-29 |
IL76989A true IL76989A (en) | 1989-07-31 |
Family
ID=24687981
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IL76989A IL76989A (en) | 1984-11-09 | 1985-11-08 | Preparation of alkyl and aryl isocyanates by oxidative dehydrogenation of the corresponding formamides in the presence of a silver catalyst |
Country Status (11)
Country | Link |
---|---|
US (1) | US4537726A (pt) |
EP (1) | EP0182537B1 (pt) |
JP (1) | JPS61178956A (pt) |
KR (1) | KR940002980B1 (pt) |
BR (1) | BR8505630A (pt) |
CA (1) | CA1234137A (pt) |
DE (1) | DE3565679D1 (pt) |
ES (1) | ES8703136A1 (pt) |
IL (1) | IL76989A (pt) |
MX (1) | MX164948B (pt) |
PT (1) | PT81456B (pt) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4683329A (en) * | 1986-04-16 | 1987-07-28 | E. I. Dupont De Nemours And Company | Beneficial use of water in catalytic conversion of formamides to isocyanates |
US5155267A (en) * | 1991-10-24 | 1992-10-13 | Arco Chemical Technology, L.P. | Synthesis of isocyanate precursors from primary formamides |
US7294734B2 (en) * | 2003-05-02 | 2007-11-13 | Velocys, Inc. | Process for converting a hydrocarbon to an oxygenate or a nitrile |
KR100782483B1 (ko) | 2006-01-19 | 2007-12-05 | 삼성전자주식회사 | 내부단자 배선을 갖는 패키지 보드 및 이를 채택하는반도체 패키지 |
ES2530272T3 (es) * | 2009-12-04 | 2015-02-27 | Basf Se | Procedimiento para la preparación de isocianatos |
EP3495345A1 (en) | 2017-12-06 | 2019-06-12 | Covestro Deutschland AG | Process for the preparation of di- or polyformamides |
JP7261563B2 (ja) * | 2018-11-02 | 2023-04-20 | 谷川油化興業株式会社 | 熱交換媒体 |
WO2023274492A1 (en) | 2021-06-28 | 2023-01-05 | MAX-PLANCK-Gesellschaft zur Förderung der Wissenschaften e.V. | Catalytic synthesis of free isocyanates |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4207251A (en) * | 1977-08-02 | 1980-06-10 | Akzona Incorporated | Catalytic oxidation of formamides to form isocyanates |
JPS5740451A (en) * | 1980-08-22 | 1982-03-06 | Mitsui Toatsu Chem Inc | Preparation of organic isocyanate by two-stage process comprising cooling and heating steps |
DE3229323A1 (de) * | 1982-08-06 | 1984-02-09 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung aliphatischer isocyanate durch oxidative dehydrierung von formamiden |
US4469640A (en) * | 1983-03-14 | 1984-09-04 | E. I. Du Pont De Nemours And Company | Catalytic conversion of formamides to isocyanates |
-
1984
- 1984-11-09 US US06/669,850 patent/US4537726A/en not_active Expired - Lifetime
-
1985
- 1985-11-05 DE DE8585308035T patent/DE3565679D1/de not_active Expired
- 1985-11-05 EP EP85308035A patent/EP0182537B1/en not_active Expired
- 1985-11-05 CA CA000494602A patent/CA1234137A/en not_active Expired
- 1985-11-08 MX MX558A patent/MX164948B/es unknown
- 1985-11-08 KR KR1019850008362A patent/KR940002980B1/ko not_active IP Right Cessation
- 1985-11-08 BR BR8505630A patent/BR8505630A/pt not_active IP Right Cessation
- 1985-11-08 PT PT81456A patent/PT81456B/pt not_active IP Right Cessation
- 1985-11-08 JP JP60250575A patent/JPS61178956A/ja active Pending
- 1985-11-08 ES ES548710A patent/ES8703136A1/es not_active Expired
- 1985-11-08 IL IL76989A patent/IL76989A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE3565679D1 (en) | 1988-11-24 |
BR8505630A (pt) | 1986-08-12 |
ES8703136A1 (es) | 1987-02-01 |
ES548710A0 (es) | 1987-02-01 |
KR860004014A (ko) | 1986-06-16 |
EP0182537B1 (en) | 1988-10-19 |
US4537726A (en) | 1985-08-27 |
PT81456B (pt) | 1988-03-03 |
MX164948B (es) | 1992-10-09 |
EP0182537A1 (en) | 1986-05-28 |
CA1234137A (en) | 1988-03-15 |
JPS61178956A (ja) | 1986-08-11 |
KR940002980B1 (ko) | 1994-04-09 |
PT81456A (en) | 1985-12-01 |
IL76989A0 (en) | 1986-04-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
HC | Change of name of proprietor(s) | ||
KB | Patent renewed | ||
KB | Patent renewed | ||
KB | Patent renewed | ||
EXP | Patent expired |