FR2433509A1 - Procede de preparation d'isocyanates - Google Patents
Procede de preparation d'isocyanatesInfo
- Publication number
- FR2433509A1 FR2433509A1 FR7824006A FR7824006A FR2433509A1 FR 2433509 A1 FR2433509 A1 FR 2433509A1 FR 7824006 A FR7824006 A FR 7824006A FR 7824006 A FR7824006 A FR 7824006A FR 2433509 A1 FR2433509 A1 FR 2433509A1
- Authority
- FR
- France
- Prior art keywords
- prim
- prepd
- amine
- acid catalyst
- silazane
- 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
- 239000003377 acid catalyst Substances 0.000 title abstract 3
- 239000012948 isocyanate Substances 0.000 title abstract 3
- 150000002513 isocyanates Chemical class 0.000 title abstract 3
- 150000001412 amines Chemical class 0.000 title abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title 1
- 229910052799 carbon Inorganic materials 0.000 title 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 title 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 abstract 2
- FFUAGWLWBBFQJT-UHFFFAOYSA-N hexamethyldisilazane Chemical compound C[Si](C)(C)N[Si](C)(C)C FFUAGWLWBBFQJT-UHFFFAOYSA-N 0.000 abstract 2
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 abstract 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 abstract 1
- 230000002930 anti-sclerotic effect Effects 0.000 abstract 1
- 150000001540 azides Chemical class 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- CVXBEEMKQHEXEN-UHFFFAOYSA-N carbaryl Chemical compound C1=CC=C2C(OC(=O)NC)=CC=CC2=C1 CVXBEEMKQHEXEN-UHFFFAOYSA-N 0.000 abstract 1
- 239000001569 carbon dioxide Substances 0.000 abstract 1
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 1
- 239000003153 chemical reaction reagent Substances 0.000 abstract 1
- 239000012024 dehydrating agents Substances 0.000 abstract 1
- 239000002360 explosive Substances 0.000 abstract 1
- 230000002363 herbicidal effect Effects 0.000 abstract 1
- 239000004009 herbicide Substances 0.000 abstract 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
- 239000000543 intermediate Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000011707 mineral Substances 0.000 abstract 1
- 150000007522 mineralic acids Chemical class 0.000 abstract 1
- 150000007524 organic acids Chemical class 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 abstract 1
- DRNXZGJGRSUXHW-UHFFFAOYSA-N silyl carbamate Chemical compound NC(=O)O[SiH3] DRNXZGJGRSUXHW-UHFFFAOYSA-N 0.000 abstract 1
- 239000003381 stabilizer Substances 0.000 abstract 1
- 238000003786 synthesis reaction Methods 0.000 abstract 1
- 231100000331 toxic Toxicity 0.000 abstract 1
- 230000002588 toxic effect Effects 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)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
L'invention concerne la chimie organique. Le procédé faisant l'objet de l'invention est caractérisé en ce qu'il consiste à faire réagir des amines primaires et du bioxyde de carbone sur l'hexaméthyldisilazane en présence d'un catalyseur de nature acide, à une température de 40 à 200 degrés C, les carbamates de silyle résultant de cette réaction étant ensuite décomposés en présence d'un agent déshydratant et à une température de 0 à 350 degrés C. Les isocyanates en question trouvent des applications dans la synthèse de corps possédant une activité physiologique.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7824006A FR2433509A1 (fr) | 1978-08-17 | 1978-08-17 | Procede de preparation d'isocyanates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7824006A FR2433509A1 (fr) | 1978-08-17 | 1978-08-17 | Procede de preparation d'isocyanates |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2433509A1 true FR2433509A1 (fr) | 1980-03-14 |
| FR2433509B1 FR2433509B1 (fr) | 1981-04-30 |
Family
ID=9211880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7824006A Granted FR2433509A1 (fr) | 1978-08-17 | 1978-08-17 | Procede de preparation d'isocyanates |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2433509A1 (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994008953A1 (fr) * | 1992-10-15 | 1994-04-28 | Monsanto Company | Procede de preparation d'isocyanates et d'esters carbamates |
| WO2014060253A1 (fr) * | 2012-10-17 | 2014-04-24 | Wacker Chemie Ag | Mélanges à base de silazanes |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3821218A (en) * | 1967-09-20 | 1974-06-28 | Gen Electric | Nitrogen-containing organosilicon materials |
| FR2368452A1 (fr) * | 1976-05-17 | 1978-05-19 | Union Carbide Corp | Derives radio-iodes de carbamates hydroxyles et leur application a l'analyse de fluides biologiques |
-
1978
- 1978-08-17 FR FR7824006A patent/FR2433509A1/fr active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3821218A (en) * | 1967-09-20 | 1974-06-28 | Gen Electric | Nitrogen-containing organosilicon materials |
| FR2368452A1 (fr) * | 1976-05-17 | 1978-05-19 | Union Carbide Corp | Derives radio-iodes de carbamates hydroxyles et leur application a l'analyse de fluides biologiques |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994008953A1 (fr) * | 1992-10-15 | 1994-04-28 | Monsanto Company | Procede de preparation d'isocyanates et d'esters carbamates |
| WO2014060253A1 (fr) * | 2012-10-17 | 2014-04-24 | Wacker Chemie Ag | Mélanges à base de silazanes |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2433509B1 (fr) | 1981-04-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |