CH211232A - Process for the preparation of a condensation product which can be used for pest control. - Google Patents
Process for the preparation of a condensation product which can be used for pest control.Info
- Publication number
- CH211232A CH211232A CH211232DA CH211232A CH 211232 A CH211232 A CH 211232A CH 211232D A CH211232D A CH 211232DA CH 211232 A CH211232 A CH 211232A
- Authority
- CH
- Switzerland
- Prior art keywords
- condensation product
- preparation
- pest control
- benzaldehyde
- sulfonic acid
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C319/00—Preparation of thiols, sulfides, hydropolysulfides or polysulfides
- C07C319/14—Preparation of thiols, sulfides, hydropolysulfides or polysulfides of sulfides
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N41/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom
- A01N41/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom containing a sulfur-to-oxygen double bond
- A01N41/04—Sulfonic acids; Derivatives thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Darstellung eines zur Schädlingsbekämpfung verwendbaren Kondensationsproduktes. Es wurde gefunden, dass durch Kondensa tion von 1 -Mol. Benzaldehyd-2-sulfonsäure mit 1 Mol. 4-Chlorbenzylmercaptan und wei tere Kondensation der entstandenen Hydrol- sulfonsäure mit 1 Mol. 4-Chlorthiophenol in Gegenwart saurer Kondensationsmittel das wasserlösliche, licht- und walkechte,
bestän dige 4-Chlorbenzyl-4'-chlorphenylmercaptal der Benzaldehyd-2-sulfonsäure erhalten wer den kann, welche Verbindung zur Verwen- dung als Schädlingsbekämpfungsmittel, ins besondere zum Immunisieren gegen Kleider motten geeignet ist. Das neue Kondensations produkt stellt nach dem Trocknen und Mahlen ein helles Pulver dar, das in Wasser gut löslich ist und schwerlösliche Blei- und Eisensalze bildet.
<I>Beispiel:</I> '/1o Mol. Benzaldehyd-2-sulfonsäure wird in 100 Teilen Eisessig gelöst und bei 0 C mit 15,9 Teilen 4-Chlorbenzylmercaptan M01.) versetzt, worauf das Gemisch 12 Stunden bei Raumtemperatur sich selbst überlassen wird. Dann wird mit 12,4 Teilen 4-Chlorthiophenol ('/"p 1M1.) versetzt und unter Eiskühlung mit Salzsäuregas gesättigt.
Nach 6stündigem Stehen wird in 1000 Teile Wasser eingerührt, die Lösung kalt mit Na tronlauge kongoneutral gestellt und aus- geäthert. Der Äther wird mit konz. Natron lauge zweimal gewaschen, getrocknet und ab destilliert. Der Rückstand wird im Vakuum bei<B>80-90'</B> getrocknet und gemahlen. Das 4-Chlorbenzyl-4'-chlorphenyl-mereaptal der Benzaldehyd-2-sulfonsäure ist in Wasser leicht löslich und bildet schwerlösliche Blei- und Eisensalze.
Process for the preparation of a condensation product which can be used for pest control. It was found that by condensation of 1 mol. Benzaldehyde-2-sulfonic acid with 1 mole. 4-chlorobenzyl mercaptan and further condensation of the hydrolysulfonic acid formed with 1 mole. 4-chlorothiophenol in the presence of acidic condensing agents, the water-soluble, light- and boil-fast,
Resistant 4-chlorobenzyl-4'-chlorophenyl mercaptal from benzaldehyde-2-sulfonic acid can be obtained, which compound is suitable for use as a pesticide, especially for immunizing against clothes moths. After drying and grinding, the new condensation product is a light-colored powder that is readily soluble in water and forms poorly soluble lead and iron salts.
<I> Example: </I> '/ 10 mol. Benzaldehyde-2-sulfonic acid is dissolved in 100 parts of glacial acetic acid and 15.9 parts of 4-chlorobenzyl mercaptan M01.) Are added at 0 ° C., after which the mixture is allowed to stand for 12 hours at room temperature is left to itself. Then 12.4 parts of 4-chlorothiophenol ('/ "p 1M1.) Are added and the mixture is saturated with hydrochloric acid gas while cooling with ice.
After standing for 6 hours, it is stirred into 1000 parts of water, the solution is rendered Congo-neutral with cold sodium hydroxide solution and extracted with ether. The ether is with conc. Sodium hydroxide solution washed twice, dried and distilled off. The residue is dried and ground in vacuo at <B> 80-90 '</B>. The 4-chlorobenzyl-4'-chlorophenyl-mereaptal of benzaldehyde-2-sulfonic acid is easily soluble in water and forms poorly soluble lead and iron salts.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH193611T | 1939-03-08 | ||
CH211232T | 1939-03-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH211232A true CH211232A (en) | 1940-08-31 |
Family
ID=25722530
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH211232D CH211232A (en) | 1939-03-08 | 1939-03-08 | Process for the preparation of a condensation product which can be used for pest control. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH211232A (en) |
-
1939
- 1939-03-08 CH CH211232D patent/CH211232A/en unknown
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