CH266573A - Process for the preparation of aromatic esters of dialkoxythiophosphoric acids. - Google Patents
Process for the preparation of aromatic esters of dialkoxythiophosphoric acids.Info
- Publication number
- CH266573A CH266573A CH266573DA CH266573A CH 266573 A CH266573 A CH 266573A CH 266573D A CH266573D A CH 266573DA CH 266573 A CH266573 A CH 266573A
- Authority
- CH
- Switzerland
- Prior art keywords
- dialkoxythiophosphoric
- acids
- aromatic esters
- preparation
- acid
- Prior art date
Links
- 239000002253 acid Substances 0.000 title claims description 6
- 150000007513 acids Chemical class 0.000 title claims description 4
- 125000003118 aryl group Chemical group 0.000 title claims description 4
- 238000000034 method Methods 0.000 title claims description 4
- 238000002360 preparation method Methods 0.000 title description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 150000002989 phenols Chemical class 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims 1
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 description 6
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 5
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 5
- -1 diethoxythiophosphoric acid p-nitro-phenol ester Chemical class 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 3
- BTJIUGUIPKRLHP-UHFFFAOYSA-N 4-nitrophenol Chemical compound OC1=CC=C([N+]([O-])=O)C=C1 BTJIUGUIPKRLHP-UHFFFAOYSA-N 0.000 description 2
- RGKVQEJMMKCODO-UHFFFAOYSA-N CCOOP(O)([ClH]OCC)=S Chemical compound CCOOP(O)([ClH]OCC)=S RGKVQEJMMKCODO-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 229960000956 coumarin Drugs 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- 235000011181 potassium carbonates Nutrition 0.000 description 2
- ZEKINDGHYQFYMU-UHFFFAOYSA-N C(C)O[ClH]P(=S)(Cl)[ClH]OCC Chemical compound C(C)O[ClH]P(=S)(Cl)[ClH]OCC ZEKINDGHYQFYMU-UHFFFAOYSA-N 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- ZYGHJZDHTFUPRJ-UHFFFAOYSA-N benzo-alpha-pyrone Natural products C1=CC=C2OC(=O)C=CC2=C1 ZYGHJZDHTFUPRJ-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 235000001671 coumarin Nutrition 0.000 description 1
- 125000000332 coumarinyl group Chemical group O1C(=O)C(=CC2=CC=CC=C12)* 0.000 description 1
- APWCRADWKLGSBF-UHFFFAOYSA-N hydroxy-bis(methylperoxy)-sulfanylidene-$l^{5}-phosphane Chemical compound COOP(O)(=S)OOC APWCRADWKLGSBF-UHFFFAOYSA-N 0.000 description 1
- 239000012442 inert solvent Substances 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
- C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
- C07D311/06—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2
- C07D311/08—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2 not hydrogenated in the hetero ring
- C07D311/16—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2 not hydrogenated in the hetero ring substituted in position 7
-
- 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
- C07F9/655—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having oxygen atoms, with or without sulfur, selenium, or tellurium atoms, as the only ring hetero atoms
- C07F9/6552—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having oxygen atoms, with or without sulfur, selenium, or tellurium atoms, as the only ring hetero atoms the oxygen atom being part of a six-membered ring
- C07F9/65522—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having oxygen atoms, with or without sulfur, selenium, or tellurium atoms, as the only ring hetero atoms the oxygen atom being part of a six-membered ring condensed with carbocyclic rings or carbocyclic ring systems
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)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Description
Verfahren zur Herstellung von aromatischen Estern von Dialkoxythiophosphorsäuren. Es ist bereits bekannt, dass man aroma tische Ester der Dialkoxythiophosphorsäuren herstellen kann, indem man Dialkoxythio- phosphorsäure-monoehloride auf Salze von Phenolen bei erhöhten Temperaturen einwir ken lässt. Es wurde nun gefunden, dass sich diese Umsetzung beschleunigen lässt und die Ausbeute erhöht werden kann, wenn man in Gegenwart von. metallischem Kupfer, vorzugs weise in einem indifferenten Lösungsmittel, arbeitet. Man erhält so die gewünschten Ester die sich zur Bekämpfung von schädlichen Insekten eignen, in kurzer Zeit, mit guter Ausbeute und in grosser Reinheit.
Tempera tursteigerungen auf etwa 80 bis<B>900</B> sind in der Regel bereits ausreichend. Das zur An wendung kommende metallische Kupfer kann in beliebiger Form vorliegen: so kann man beispielsweise der Reaktionsmischung eine kleine Menge Kupferpulver zugeben; man kann aber auch gegebenenfalls die Umsetzung in einem kupfernen Gefäss ausführen.
<I>Beispiel .1:</I> 139 g p-Nitro-phenol werden in einem Rührkolben mit 400 em:3 Chlorbenzol ange- schlämmt. Dazu werden 70 g calc. Soda, 2 g metallisches Kupfer und 1 g Kaliumbromid gegeben. Unter Rühren gibt man bei 800 190 g Diäthoxythiophosphorsäurechlorid hinzu. Es setzt sofort eine Reaktion ein, die die Tem peratur des reagierenden Produktes auf 90 bis 950 bringt. Man rührt noch 5 Stunden bei 85 bis 90 und arbeitet dann auf.
Es werden 265 bis 270 g Diäthoxythiophosphorsäure-p- nitro-phenolester erhalten. Ausbeute: 90'j d. Th. Das erhaltene Produkt ist schwach röt- lichgelb gefärbt und praktisch frei von Nebenprodukten.
Beispiel <I>2:</I> <B>278</B> g p-Nitro-phenol werden in 800 cm3 Chlorbenzol aufgeschlämmt. Dazu gibt man 150 g calc. Soda, 3 g Kupferpulver und 2 g Kaliumbromid. Bei 800 werden in 5 Minuten 330 g Dimethoxythiophosphorsäure-monoehlo- rid eingerührt. Es setzt eine Reaktion ein, die die Innentemperatur auf 90 bis 950 steigen lässt. Es wird noch 5 Stunden bei 85 bis 900 nachgerührt und dann wie üblich aufgearbei tet. Es werden 450 g Dimethoxythiophos- phorsäure-p-nitro-phenolester vom Kp. 2 mm 1580 erhalten.
Ausbeute: 85,5 % d. Th.
<I>Beispiel 3:</I> 88 g l--L#-Iethyl-umbelliferon
EMI0001.0037
werden in 1200 em@ Chlorbenzol angeschlämmt. Dazu gibt man 50 g Pottasche, 2 g Kupfer pulver und 1 g Kaliumbromid. Unter Rühren werden bei 800 95g Diäthoxythiophosphor- säure-monochlorid zugegeben. Man hält die Temperatur noch 9 Stunden aus 95 bis 1000 und arbeitet dann in der üblichen Weise auf. Es werden 100 g Ester vom Fp. 380 erhalten, entsprechend einer Ausbeute von<I>72 ja .</I>
Beispiel. <I>4:</I> 14 g 7-Ox7-cumarin werden in 200 cm@ Chlorbenzol angeschlämmt. Dazu gibt man bei 700 12 g Kaliumkarbonat und 100 mg Kupferpulver und lässt unter Rühren bei 1000 19 g Diät.hoxythiophosphorsäLire-monochlorid zufliessen. Nach 8 Stunden arbeitet man das Reaktionsprodukt in der üblichen Weise auf.
Man erhält 12 g des Diäthoxythiophosphor- säureesters des 7-Oxy=cumarins vom Fp. 460. <I>Beispiel s:</I> 18 g 6-Oxy-4-methyl-cumarin werden in 300 em@ Chlorbenzol angeschlämmt. Dazu gibt man bei 800 15 g Kaliumkarbonat und 3 g Kupferpulver. Dann lässt man bei 1000 unter Rühren 19 g Diäthoxythiophosphor- säure-mo#nochlorid einlaufen. Die Temperatur wird nun noch 10 Stunden bei 1050 gehalten.
Nach dem Aufarbeiten werden 21 g des Di- äthoxythiophosphorsäureesters des 6-Oxc-4- methyl-cumarins erhalten. Das Produkt. ist ein viskoses öl.
Process for the preparation of aromatic esters of dialkoxythiophosphoric acids. It is already known that aromatic esters of dialkoxythiophosphoric acids can be prepared by allowing dialkoxythiophosphoric acid monoehloride to act on salts of phenols at elevated temperatures. It has now been found that this reaction can be accelerated and the yield can be increased if one is in the presence of. metallic copper, preferably in an inert solvent, works. The desired esters, which are suitable for combating harmful insects, are thus obtained in a short time, with good yield and in great purity.
Increases in temperature to around 80 to <B> 900 </B> are usually sufficient. The metallic copper used can be in any form: for example, a small amount of copper powder can be added to the reaction mixture; but you can also, if necessary, carry out the reaction in a copper vessel.
<I> Example .1: </I> 139 g of p-nitro-phenol are slurried with 400 em: 3 chlorobenzene in a stirred flask. For this purpose, 70 g calc. Soda, 2 g of metallic copper and 1 g of potassium bromide are added. With stirring, 190 g of diethoxythiophosphoric acid chloride are added at 800. A reaction starts immediately that brings the temperature of the reacting product to 90 to 950. The mixture is stirred for a further 5 hours at 85 to 90 and then worked up.
265 to 270 g of diethoxythiophosphoric acid p-nitro-phenol ester are obtained. Yield: 90'j d. Th. The product obtained is pale reddish yellow in color and practically free from by-products.
Example <I> 2: </I> <B> 278 </B> g of p-nitro-phenol are suspended in 800 cm3 of chlorobenzene. Add 150 g of calc. Soda, 3 g copper powder and 2 g potassium bromide. At 800, 330 g of dimethoxythiophosphoric acid monoehlo- ride are stirred in over 5 minutes. A reaction begins that causes the internal temperature to rise to 90 to 950. The mixture is stirred for a further 5 hours at 85 to 900 and then worked up as usual. 450 g of dimethoxythiophosphoric acid-p-nitro-phenol ester with a boiling point of 2 mm 1580 are obtained.
Yield: 85.5% of theory Th.
<I> Example 3: </I> 88 g l-L # -ethyl-umbelliferone
EMI0001.0037
are suspended in 1200 em @ chlorobenzene. Add 50 g of potash, 2 g of copper powder and 1 g of potassium bromide. With stirring, 95 g of diethoxythiophosphoric acid monochloride are added at 800. The temperature is kept from 95 to 1000 for a further 9 hours and then worked up in the usual way. 100 g of ester with a melting point of 380 are obtained, corresponding to a yield of <I> 72 yes. </I>
Example. <I> 4: </I> 14 g of 7-Ox7-coumarin are suspended in 200 cm @ chlorobenzene. To this are added 12 g of potassium carbonate and 100 mg of copper powder at 700 and 19 g of diethoxythiophosphorus monochloride are allowed to flow in at 1000 while stirring. After 8 hours, the reaction product is worked up in the usual way.
12 g of the diethoxythiophosphoric acid ester of 7-oxy = coumarin with a melting point of 460 are obtained. Example s: 18 g of 6-oxy-4-methyl-coumarin are suspended in 300 em of chlorobenzene. Add 15 g of potassium carbonate and 3 g of copper powder at 800. Then 19 g of diethoxythiophosphoric acid monochloride are run in at 1000 with stirring. The temperature is now held at 1050 for a further 10 hours.
After working up, 21 g of the diethoxythiophosphoric acid ester of 6-oxc-4-methyl-coumarin are obtained. The product. is a viscous oil.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH266573T | 1948-04-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH266573A true CH266573A (en) | 1950-02-15 |
Family
ID=4476156
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH266573D CH266573A (en) | 1948-04-07 | 1948-04-07 | Process for the preparation of aromatic esters of dialkoxythiophosphoric acids. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH266573A (en) |
-
1948
- 1948-04-07 CH CH266573D patent/CH266573A/en unknown
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