BE876684A - Procede pour la preparation des isocyanates - Google Patents
Procede pour la preparation des isocyanatesInfo
- Publication number
- BE876684A BE876684A BE0/195500A BE195500A BE876684A BE 876684 A BE876684 A BE 876684A BE 0/195500 A BE0/195500 A BE 0/195500A BE 195500 A BE195500 A BE 195500A BE 876684 A BE876684 A BE 876684A
- Authority
- BE
- Belgium
- Prior art keywords
- isocyanates
- preparation
- Prior art date
Links
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
- C07C273/18—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas
- C07C273/1809—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas with formation of the N-C(O)-N moiety
- C07C273/1836—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas with formation of the N-C(O)-N moiety from derivatives of carbamic acid
- C07C273/1845—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas with formation of the N-C(O)-N moiety from derivatives of carbamic acid comprising the -N-C(O)-Hal moiety
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
- C07C2601/14—The ring being saturated
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 |
|---|---|---|---|
| DE2824648A DE2824648C2 (de) | 1978-06-05 | 1978-06-05 | Verfahren zur Herstellung von Isocyanaten |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE876684A true BE876684A (fr) | 1979-09-17 |
Family
ID=6041093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE0/195500A BE876684A (fr) | 1978-06-05 | 1979-05-31 | Procede pour la preparation des isocyanates |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US4238404A (it) |
| JP (1) | JPS54160316A (it) |
| AT (1) | AT360978B (it) |
| AU (1) | AU522044B2 (it) |
| BE (1) | BE876684A (it) |
| BR (1) | BR7903510A (it) |
| CA (1) | CA1123449A (it) |
| DD (1) | DD144051A5 (it) |
| DE (1) | DE2824648C2 (it) |
| ES (1) | ES481245A1 (it) |
| FR (1) | FR2428028A1 (it) |
| GB (1) | GB2022091B (it) |
| IT (1) | IT1116864B (it) |
| NL (1) | NL7904202A (it) |
| SE (1) | SE7904802L (it) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2710595C3 (de) * | 1977-03-11 | 1980-11-06 | Akzo Gmbh, 5600 Wuppertal | Verfahren zur Herstellung der Trans-Isomeren von Cyclohexan-l,4-diamin-, diurethanen, -diharnstoffen, -disulfonylharnstoffen und -diisocyanat |
| DE3015374A1 (de) * | 1980-04-22 | 1981-10-29 | Akzo Gmbh, 5600 Wuppertal | Verfahren zur herstellung von harnstoffen |
| EP0123352A1 (en) * | 1983-04-15 | 1984-10-31 | Stamicarbon B.V. | Aliphatic diisocyanate |
| US5162575A (en) * | 1991-04-01 | 1992-11-10 | Olin Corporation | Preparation of isocyanates using a silver salt promoted rearrangement |
| US5319133A (en) * | 1992-12-28 | 1994-06-07 | Olin Corporation | Isocyanates and their preparation using hypochlorous acid |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1492668A (fr) * | 1965-09-15 | 1967-08-18 | Stauffer Chemical Co | Procédé de production d'isocyanates organiques |
| US3483242A (en) * | 1966-11-14 | 1969-12-09 | Allied Chem | Process for the preparation of isocyanates |
-
1978
- 1978-06-05 DE DE2824648A patent/DE2824648C2/de not_active Expired
-
1979
- 1979-05-03 FR FR7911140A patent/FR2428028A1/fr active Pending
- 1979-05-15 AU AU47070/79A patent/AU522044B2/en not_active Ceased
- 1979-05-18 US US06/040,375 patent/US4238404A/en not_active Expired - Lifetime
- 1979-05-23 IT IT49140/79A patent/IT1116864B/it active
- 1979-05-28 CA CA328,523A patent/CA1123449A/en not_active Expired
- 1979-05-29 AT AT390179A patent/AT360978B/de not_active IP Right Cessation
- 1979-05-29 NL NL7904202A patent/NL7904202A/xx not_active Application Discontinuation
- 1979-05-30 DD DD79213271A patent/DD144051A5/de unknown
- 1979-05-31 BE BE0/195500A patent/BE876684A/xx unknown
- 1979-06-01 SE SE7904802A patent/SE7904802L/xx not_active Application Discontinuation
- 1979-06-04 ES ES481245A patent/ES481245A1/es not_active Expired
- 1979-06-04 GB GB7919381A patent/GB2022091B/en not_active Expired
- 1979-06-04 BR BR7903510A patent/BR7903510A/pt unknown
- 1979-06-05 JP JP6951079A patent/JPS54160316A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US4238404A (en) | 1980-12-09 |
| AU4707079A (en) | 1979-12-13 |
| DE2824648A1 (de) | 1980-01-17 |
| BR7903510A (pt) | 1980-01-22 |
| AT360978B (de) | 1981-02-10 |
| JPS54160316A (en) | 1979-12-19 |
| ATA390179A (de) | 1980-07-15 |
| NL7904202A (nl) | 1979-12-07 |
| IT7949140A0 (it) | 1979-05-23 |
| AU522044B2 (en) | 1982-05-13 |
| IT1116864B (it) | 1986-02-10 |
| ES481245A1 (es) | 1980-01-16 |
| FR2428028A1 (fr) | 1980-01-04 |
| GB2022091B (en) | 1982-11-03 |
| SE7904802L (sv) | 1979-12-06 |
| DD144051A5 (de) | 1980-09-24 |
| GB2022091A (en) | 1979-12-12 |
| CA1123449A (en) | 1982-05-11 |
| DE2824648C2 (de) | 1982-06-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RO78105A (ro) | Procedeu pentru prepararea unor 2-clor-6-nitroaniline | |
| RO76889A (ro) | Procedeu de preparare a unor 8-metoximetilergoline sau 8-metilmercaptometilergoline | |
| RO83454A (ro) | Procedeu pentru prepararea unor pirimidoane | |
| RO76393A (ro) | Procedeu de preparare a unor n-(2'-pirolidilmetil)-2-metoxi-4-amino-5-alchilsulfonilbenzamide | |
| RO76935A (ro) | Procedeu pentru prepararea unor benzofenonhidrazone | |
| RO81037A (ro) | Procedeu de preparare a unor 4-dezacelil-vincaleucoblastin-c3-carboxuhydrazide | |
| RO76562A (fr) | Procede pour la preparation des 3-imidazolilbenzo-1,2,4-triazine-1-oxydes | |
| BE884650A (fr) | Procede pour la preparation de diesterdiamides | |
| BE885977A (fr) | Procede pour la preparation de dithiazolyldisulfures | |
| RO82359A (ro) | Procedeu pentru prepararea unor 4-tiazolidinone | |
| RO78225A (ro) | Procedeu pentru prepararea unor 3,4-dihidro-3-oxo-2-chinoxaline | |
| PT69815A (fr) | Procede de preparation de l' o-methallyloxyphenol | |
| FR2424286B1 (fr) | Procede de preparation de 6-halo-pregnanes | |
| BE879854A (fr) | Procede de preparation de diaryl-para-phenylene-diamines | |
| RO78638A (ro) | Procedeu pentru prepararea unor n-propargilaniline substituite | |
| BE875378A (fr) | Procede de preparation d'alcoylsilanes | |
| RO76936A (ro) | Procedeu pentru prepararea de p-fenilendiamine asimetrice n-fenil-n'-substituite | |
| MA18605A1 (fr) | Procede de preparation de 3-exomethylenecepham-sulfoxydes | |
| BE876684A (fr) | Procede pour la preparation des isocyanates | |
| RO81116A (ro) | Procedeu pentru prepararea unor corticoidale | |
| BE880031A (fr) | Procede pour la preparation de 1 alpha, 3 beta-dihydroxy-delta 5-steroides | |
| RO83438A (ro) | Procedeu pentru prepararea unor bis-tetrazolmetiltioli | |
| PT69452A (fr) | Procede pour la preparation des catalyseurs | |
| RO78609A (ro) | Procedeu pentru prepararea unor 1-benzoil 3-tiosemi-carbazide | |
| BE880139A (fr) | Procede pour la preparation de chloro-amino-s-triazines |