CH300756A - Process for producing a phosphoric acid ester. - Google Patents
Process for producing a phosphoric acid ester.Info
- Publication number
- CH300756A CH300756A CH300756DA CH300756A CH 300756 A CH300756 A CH 300756A CH 300756D A CH300756D A CH 300756DA CH 300756 A CH300756 A CH 300756A
- Authority
- CH
- Switzerland
- Prior art keywords
- phosphoric acid
- acid ester
- producing
- compound
- formula
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 8
- 150000003014 phosphoric acid esters Chemical class 0.000 title claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 6
- RYYWUUFWQRZTIU-UHFFFAOYSA-N Thiophosphoric acid Chemical compound OP(O)(S)=O RYYWUUFWQRZTIU-UHFFFAOYSA-N 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052794 bromium Inorganic materials 0.000 claims description 2
- 239000000460 chlorine Substances 0.000 claims description 2
- 229910052801 chlorine Inorganic materials 0.000 claims description 2
- KMJJJTCKNZYTEY-UHFFFAOYSA-N chloro-diethoxy-sulfanylidene-$l^{5}-phosphane Chemical compound CCOP(Cl)(=S)OCC KMJJJTCKNZYTEY-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims 1
- 150000001447 alkali salts Chemical class 0.000 claims 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- 239000000203 mixture Substances 0.000 description 2
- KJFMBFZCATUALV-UHFFFAOYSA-N phenolphthalein Chemical compound C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)C2=CC=CC=C2C(=O)O1 KJFMBFZCATUALV-UHFFFAOYSA-N 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
- C07F9/645—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having two nitrogen atoms as the only ring hetero atoms
- C07F9/6509—Six-membered rings
- C07F9/650905—Six-membered rings having the nitrogen atoms in the positions 1 and 2
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
Description
Verfahren zur Herstellung eines Phosphorsäureesters. Gegenstand des vorliegenden Patentes ist ein Verfahren zur Herstellung eines Phos- phorsäureesters. Das Verfahren ist dadurch gekennzeichnet, dass man eine Verbindung der Formel
EMI0001.0005
worin X Chlor oder Brom bedeutet, mit einer Verbindung der Formel
EMI0001.0006
worin Y einen im Verlaufe des Verfahrens sich abspaltenden Rest, wie Wasserstoff oder ein Kation, bedeutet, umsetzt.
Die erhaltene neue Verbindung, der Thiophosphorsäure - [1 - isopropyl - 3 - methyl- pyrazolyl-(5)]-diäthylester, stellt eine leicht gefärbte Flüssigkeit dar, die unter 0,12 mm Druck bei 117 bis 120 siedet.
Sie soll als Wirksubstanz für Schädlings bekämpfungsmittel Verwendung finden. <I>Beispiel:</I> 140 Teile 1- Isopropyl - 3 - methyl - pyr- azolon-(5) werden mit 138 Teilen Kalium carbonat und 2000 Teilen Benzol versetzt und unter Rühren zum Sieden erhitzt.
Dabei wird das bei der Enolatbildung freiwerdende Was ser mit Benzol azeotrop abdestilliert. Sobald sich im Destillat kein Wasser mehr abschei det, wird auf 60 bis 70 abgekühlt, 190 Teile Diäthylthiophosphorsäurechlorid zugetropft und anschliessend 10 Stunden unter Rück fluss gekocht.
Nach dem Erkalten wird der Reaktionsmischung unter gutem Rühren so lange Kaliumcarbonatlösung zugesetzt, bis die wässrige Schicht Phenolphthaleinpapier eben rot anfärbt. Nach Abtrennen der wässrigen Schicht wird das Lösungsmittel abdestilliert. Es bleibt der Thiophosphorsäure-[1-isopropyl- 3 - methyl - pyrazolyl - (5) ] - diäthylester als schwach gefärbte Flüssigkeit zurück, der unter 0,12 mm Druck bei 117 bis 120 siedet.
Process for producing a phosphoric acid ester. The present patent relates to a process for the production of a phosphoric acid ester. The process is characterized in that a compound of the formula
EMI0001.0005
wherein X is chlorine or bromine, with a compound of the formula
EMI0001.0006
where Y is a radical which is split off in the course of the process, such as hydrogen or a cation.
The new compound obtained, thiophosphoric acid - [1 - isopropyl - 3 - methylpyrazolyl (5)] - diethyl ester, is a light colored liquid which boils at 117 to 120 under 0.12 mm pressure.
It should be used as an active ingredient for pesticides. <I> Example: </I> 140 parts of 1-isopropyl-3-methyl-pyr-azolone- (5) are mixed with 138 parts of potassium carbonate and 2000 parts of benzene and heated to the boil with stirring.
The water released during enolate formation is azeotropically distilled off with benzene. As soon as no more water separates out in the distillate, the mixture is cooled to 60 to 70, 190 parts of diethylthiophosphoric acid chloride are added dropwise and the mixture is then refluxed for 10 hours.
After cooling, potassium carbonate solution is added to the reaction mixture with thorough stirring until the aqueous layer of phenolphthalein paper just turns red. After the aqueous layer has been separated off, the solvent is distilled off. The thiophosphoric acid [1-isopropyl-3-methyl-pyrazolyl- (5)] -diethyl ester remains as a slightly colored liquid, which boils at 117 to 120 under 0.12 mm pressure.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH294598T | 1951-04-20 | ||
| CH300756T | 1951-04-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH300756A true CH300756A (en) | 1954-08-15 |
Family
ID=25733517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH300756D CH300756A (en) | 1951-04-20 | 1951-04-20 | Process for producing a phosphoric acid ester. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH300756A (en) |
-
1951
- 1951-04-20 CH CH300756D patent/CH300756A/en unknown
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