NO932691L - Fremgangsmaate for fremstilling av isocyanater ved spalting ab N,N,N'-trisubstituert urea - Google Patents
Fremgangsmaate for fremstilling av isocyanater ved spalting ab N,N,N'-trisubstituert ureaInfo
- Publication number
- NO932691L NO932691L NO932691A NO932691A NO932691L NO 932691 L NO932691 L NO 932691L NO 932691 A NO932691 A NO 932691A NO 932691 A NO932691 A NO 932691A NO 932691 L NO932691 L NO 932691L
- Authority
- NO
- Norway
- Prior art keywords
- isocyanate
- formula
- isocyanates
- preparation
- boiling point
- Prior art date
Links
- 239000012948 isocyanate Substances 0.000 title abstract 5
- 150000002513 isocyanates Chemical class 0.000 title abstract 5
- 238000000034 method Methods 0.000 title abstract 2
- 238000002360 preparation method Methods 0.000 title abstract 2
- -1 N, N, N'-Trisubstituted Urea Chemical class 0.000 title 1
- 238000003776 cleavage reaction Methods 0.000 title 1
- 230000007017 scission Effects 0.000 title 1
- 238000009835 boiling Methods 0.000 abstract 2
- 125000004191 (C1-C6) alkoxy group Chemical group 0.000 abstract 1
- KWYHDKDOAIKMQN-UHFFFAOYSA-N N,N,N',N'-tetramethylethylenediamine Chemical compound CN(C)CCN(C)C KWYHDKDOAIKMQN-UHFFFAOYSA-N 0.000 abstract 1
- 235000013877 carbamide Nutrition 0.000 abstract 1
- 239000012159 carrier gas Substances 0.000 abstract 1
- 239000003085 diluting agent Substances 0.000 abstract 1
- 229910052736 halogen Inorganic materials 0.000 abstract 1
- 150000002367 halogens Chemical class 0.000 abstract 1
- 125000005842 heteroatom Chemical group 0.000 abstract 1
- 125000000623 heterocyclic group Chemical group 0.000 abstract 1
- 125000006574 non-aromatic ring group Chemical group 0.000 abstract 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 abstract 1
- 125000000467 secondary amino group Chemical class [H]N([*:1])[*:2] 0.000 abstract 1
- 150000003672 ureas Chemical class 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C263/00—Preparation of derivatives of isocyanic acid
- C07C263/06—Preparation of derivatives of isocyanic acid from or via ureas
-
- 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)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Medicinal Preparation (AREA)
Abstract
Fremgangsmåte for fremstilling av isocyanater er kjennetegnet ved at man spalter N,N,N'-trisubstltuerte urea med formel I. der Hi, ~& 2S Eer like eller forskjellige og betyr en rettkjedet, forgrenet eller cyklisk, usubstituert eller med (C-C,) alkoksy, eventuelt substituert fenyl, halogen eller med andre under de anvendte reaksjons-betingelsene inerte rester av substituerte (C-C) alkylrester og RS Rsammen danner en heterocyklisk ikke-aromatisk ring, som eventuelt ytterligere kan inneholde heteroatomer, i et under reaksjonsbetingel-sene inert fortynningsmiddel ved forhøyet temperatur i et lettflyktig isocyanat med formel RNCO og et tungtflyktig sekundært amin med formel RRNH, hvis kokepunkt ligger over kokepunktet til isocyanatet og over den anvendte reaksjonstemperatur, hvorfra isocyanatet ved hjelp av en bæregasstrøm kan bli fjernet over toppen.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0163192A AT398762B (de) | 1992-08-13 | 1992-08-13 | Verfahren zur herstellung von isocyanaten durch zersetzung von n,n,n'-trisubstituierten harnstoffen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO932691D0 NO932691D0 (no) | 1993-07-26 |
| NO932691L true NO932691L (no) | 1994-02-14 |
Family
ID=3517594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO932691A NO932691L (no) | 1992-08-13 | 1993-07-26 | Fremgangsmaate for fremstilling av isocyanater ved spalting ab N,N,N'-trisubstituert urea |
Country Status (20)
| Country | Link |
|---|---|
| EP (1) | EP0583637B1 (no) |
| JP (1) | JPH06157449A (no) |
| KR (1) | KR940003929A (no) |
| CN (1) | CN1085209A (no) |
| AT (2) | AT398762B (no) |
| AU (1) | AU4427093A (no) |
| CA (1) | CA2100718A1 (no) |
| CZ (1) | CZ166593A3 (no) |
| DE (1) | DE59305711D1 (no) |
| DK (1) | DK0583637T3 (no) |
| ES (1) | ES2097949T3 (no) |
| GR (1) | GR3022795T3 (no) |
| HU (1) | HU214218B (no) |
| MX (1) | MX9304898A (no) |
| NO (1) | NO932691L (no) |
| PL (1) | PL300037A1 (no) |
| SI (1) | SI9300427A (no) |
| SK (1) | SK71693A3 (no) |
| TW (1) | TW225517B (no) |
| ZA (1) | ZA935235B (no) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2377847A1 (en) | 2010-04-14 | 2011-10-19 | 3M Innovative Properties Company | Process for producing isocyanates |
| JP5165815B2 (ja) * | 2011-06-24 | 2013-03-21 | 昭和電工株式会社 | エチレン性不飽和基含有イソシアネート化合物の製造方法 |
| KR101490202B1 (ko) * | 2013-04-10 | 2015-02-05 | 광주과학기술원 | 미세기공성 이산화탄소 흡착제 및 그의 제조방법 |
| CN108299294A (zh) * | 2017-01-11 | 2018-07-20 | 江苏恒瑞医药股份有限公司 | 一种乐伐替尼杂质的制备方法 |
| FR3068257B1 (fr) * | 2017-06-29 | 2022-01-14 | Commissariat Energie Atomique | Carbamides pour la separation de l'uranium(vi) et du plutonium(iv) sans reduction du plutonium(iv) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH228816A (de) * | 1940-11-19 | 1943-09-15 | Ig Farbenindustrie Ag | Verfahren zur Herstellung von Isocyansäure-i-hexylester. |
| FR1473821A (fr) * | 1963-07-05 | 1967-03-24 | Carbochimique Et Inst Francais | Nouveaux procédé de fabrication d'esters isocyaniques |
| US3936484A (en) * | 1974-09-25 | 1976-02-03 | Atlantic Richfield Company | Production of isocyanates from substituted ureas |
| US4141913A (en) * | 1978-01-23 | 1979-02-27 | American Carbonyl, Inc. | Method of generating lower alkyl and cycloalkyl isocyanates |
-
1992
- 1992-08-13 AT AT0163192A patent/AT398762B/de not_active IP Right Cessation
-
1993
- 1993-07-08 SK SK716-93A patent/SK71693A3/sk unknown
- 1993-07-16 CA CA002100718A patent/CA2100718A1/en not_active Abandoned
- 1993-07-20 ZA ZA935235A patent/ZA935235B/xx unknown
- 1993-07-21 DE DE59305711T patent/DE59305711D1/de not_active Expired - Fee Related
- 1993-07-21 DK DK93111624.8T patent/DK0583637T3/da active
- 1993-07-21 ES ES93111624T patent/ES2097949T3/es not_active Expired - Lifetime
- 1993-07-21 AT AT93111624T patent/ATE150010T1/de not_active IP Right Cessation
- 1993-07-21 EP EP93111624A patent/EP0583637B1/de not_active Expired - Lifetime
- 1993-07-23 TW TW082105877A patent/TW225517B/zh active
- 1993-07-26 NO NO932691A patent/NO932691L/no unknown
- 1993-07-28 AU AU44270/93A patent/AU4427093A/en not_active Abandoned
- 1993-08-11 PL PL93300037A patent/PL300037A1/xx unknown
- 1993-08-12 CN CN93116231A patent/CN1085209A/zh active Pending
- 1993-08-12 HU HU9302338A patent/HU214218B/hu not_active IP Right Cessation
- 1993-08-12 JP JP5200824A patent/JPH06157449A/ja not_active Withdrawn
- 1993-08-12 MX MX9304898A patent/MX9304898A/es unknown
- 1993-08-12 KR KR1019930015595A patent/KR940003929A/ko not_active Ceased
- 1993-08-13 SI SI9300427A patent/SI9300427A/sl unknown
- 1993-08-13 CZ CZ931665A patent/CZ166593A3/cs unknown
-
1997
- 1997-03-13 GR GR960403090T patent/GR3022795T3/el unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AT398762B (de) | 1995-01-25 |
| HU9302338D0 (en) | 1993-11-29 |
| JPH06157449A (ja) | 1994-06-03 |
| ATA163192A (de) | 1994-06-15 |
| CZ166593A3 (en) | 1994-03-16 |
| KR940003929A (ko) | 1994-03-14 |
| CA2100718A1 (en) | 1994-02-14 |
| HU214218B (hu) | 1998-01-28 |
| TW225517B (no) | 1994-06-21 |
| PL300037A1 (en) | 1994-04-05 |
| CN1085209A (zh) | 1994-04-13 |
| GR3022795T3 (en) | 1997-06-30 |
| HUT64740A (en) | 1994-02-28 |
| DE59305711D1 (de) | 1997-04-17 |
| EP0583637B1 (de) | 1997-03-12 |
| ZA935235B (en) | 1994-03-02 |
| DK0583637T3 (da) | 1997-04-21 |
| NO932691D0 (no) | 1993-07-26 |
| AU4427093A (en) | 1994-02-17 |
| SK71693A3 (en) | 1994-06-08 |
| MX9304898A (es) | 1994-04-29 |
| EP0583637A1 (de) | 1994-02-23 |
| ATE150010T1 (de) | 1997-03-15 |
| ES2097949T3 (es) | 1997-04-16 |
| SI9300427A (en) | 1994-03-31 |
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