FR2378749A1 - Procede de preparation d'isocyanates aliphatiques par decomposition thermique d'halogenures d'acides carbamiques aliphatiques - Google Patents
Procede de preparation d'isocyanates aliphatiques par decomposition thermique d'halogenures d'acides carbamiques aliphatiquesInfo
- Publication number
- FR2378749A1 FR2378749A1 FR7802357A FR7802357A FR2378749A1 FR 2378749 A1 FR2378749 A1 FR 2378749A1 FR 7802357 A FR7802357 A FR 7802357A FR 7802357 A FR7802357 A FR 7802357A FR 2378749 A1 FR2378749 A1 FR 2378749A1
- Authority
- FR
- France
- Prior art keywords
- aliphatic
- thermal decomposition
- preparation
- carbamic acid
- cycloaliphatic
- 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
Links
- 239000012948 isocyanate Substances 0.000 title abstract 4
- 150000002513 isocyanates Chemical class 0.000 title abstract 4
- 238000005979 thermal decomposition reaction Methods 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- 238000002360 preparation method Methods 0.000 title abstract 2
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 title 1
- KJAMZCVTJDTESW-UHFFFAOYSA-N tiracizine Chemical compound C1CC2=CC=CC=C2N(C(=O)CN(C)C)C2=CC(NC(=O)OCC)=CC=C21 KJAMZCVTJDTESW-UHFFFAOYSA-N 0.000 title 1
- 125000001931 aliphatic group Chemical group 0.000 abstract 3
- 238000009835 boiling Methods 0.000 abstract 2
- CKDWPUIZGOQOOM-UHFFFAOYSA-N Carbamyl chloride Chemical group NC(Cl)=O CKDWPUIZGOQOOM-UHFFFAOYSA-N 0.000 abstract 1
- 150000001715 carbamic acids Chemical class 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 150000004820 halides Chemical group 0.000 abstract 1
- 239000003960 organic solvent Substances 0.000 abstract 1
- 238000010992 reflux Methods 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C263/00—Preparation of derivatives of isocyanic acid
- C07C263/04—Preparation of derivatives of isocyanic acid from or via carbamates or carbamoyl halides
-
- 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 |
|---|---|---|---|
| DE19772703281 DE2703281A1 (de) | 1977-01-27 | 1977-01-27 | Verfahren zur herstellung von aliphatischen isocyanaten |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2378749A1 true FR2378749A1 (fr) | 1978-08-25 |
| FR2378749B1 FR2378749B1 (en, 2012) | 1983-09-30 |
Family
ID=5999663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7802357A Granted FR2378749A1 (fr) | 1977-01-27 | 1978-01-27 | Procede de preparation d'isocyanates aliphatiques par decomposition thermique d'halogenures d'acides carbamiques aliphatiques |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4162263A (en, 2012) |
| JP (1) | JPS5395915A (en, 2012) |
| BE (1) | BE863292A (en, 2012) |
| DE (1) | DE2703281A1 (en, 2012) |
| FR (1) | FR2378749A1 (en, 2012) |
| GB (1) | GB1593952A (en, 2012) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4124671A1 (de) * | 1991-07-25 | 1993-01-28 | Basf Ag | Reaktor und verfahren zur thermischen spaltung von carbamidsaeureestern |
| CN102976976B (zh) * | 2012-11-29 | 2014-11-26 | 湖南化工研究院 | 一种甲基异氰酸酯的制备方法 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1193034B (de) * | 1963-07-12 | 1965-05-20 | Bayer Ag | Verfahren und Vorrichtung zur Herstellung von Alkylisocyanaten |
| FR1400863A (fr) * | 1963-07-12 | 1965-05-28 | Bayer Ag | Procédé et dispositif de préparation d'isocyanates d'alkyle |
| DE2210285A1 (de) * | 1972-03-03 | 1973-09-06 | Basf Ag | Verfahren zur herstellung von isocyanaten |
| DE2411442A1 (de) * | 1974-03-11 | 1975-10-02 | Basf Ag | Verfahren zur herstellung von aliphatischen isocyanaten |
| FR2264007A1 (en, 2012) * | 1974-03-11 | 1975-10-10 | Basf Ag | |
| FR2270240A1 (en, 2012) * | 1974-05-08 | 1975-12-05 | Basf Ag | |
| DE2503270A1 (de) * | 1975-01-28 | 1976-07-29 | Basf Ag | Verfahren zur herstellung von aliphatischen isocyanaten |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4082787A (en) * | 1977-01-03 | 1978-04-04 | E. I. Du Pont De Nemours And Company | Methyl isocyanate process |
-
1977
- 1977-01-27 DE DE19772703281 patent/DE2703281A1/de not_active Withdrawn
-
1978
- 1978-01-05 US US05/867,145 patent/US4162263A/en not_active Expired - Lifetime
- 1978-01-24 JP JP590278A patent/JPS5395915A/ja active Pending
- 1978-01-25 BE BE184615A patent/BE863292A/xx not_active IP Right Cessation
- 1978-01-25 GB GB2961/78A patent/GB1593952A/en not_active Expired
- 1978-01-27 FR FR7802357A patent/FR2378749A1/fr active Granted
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1193034B (de) * | 1963-07-12 | 1965-05-20 | Bayer Ag | Verfahren und Vorrichtung zur Herstellung von Alkylisocyanaten |
| FR1400863A (fr) * | 1963-07-12 | 1965-05-28 | Bayer Ag | Procédé et dispositif de préparation d'isocyanates d'alkyle |
| DE2210285A1 (de) * | 1972-03-03 | 1973-09-06 | Basf Ag | Verfahren zur herstellung von isocyanaten |
| DE2411442A1 (de) * | 1974-03-11 | 1975-10-02 | Basf Ag | Verfahren zur herstellung von aliphatischen isocyanaten |
| FR2264007A1 (en, 2012) * | 1974-03-11 | 1975-10-10 | Basf Ag | |
| FR2264008A1 (en, 2012) * | 1974-03-11 | 1975-10-10 | Basf Ag | |
| FR2270240A1 (en, 2012) * | 1974-05-08 | 1975-12-05 | Basf Ag | |
| DE2503270A1 (de) * | 1975-01-28 | 1976-07-29 | Basf Ag | Verfahren zur herstellung von aliphatischen isocyanaten |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5395915A (en) | 1978-08-22 |
| BE863292A (fr) | 1978-07-25 |
| US4162263A (en) | 1979-07-24 |
| DE2703281A1 (de) | 1978-08-03 |
| FR2378749B1 (en, 2012) | 1983-09-30 |
| GB1593952A (en) | 1981-07-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |