DD247006A1 - METHOD FOR PRODUCING DIORGANOSTANYLDI (ACETIC ACID AMIDES) - Google Patents
METHOD FOR PRODUCING DIORGANOSTANYLDI (ACETIC ACID AMIDES) Download PDFInfo
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- DD247006A1 DD247006A1 DD28735486A DD28735486A DD247006A1 DD 247006 A1 DD247006 A1 DD 247006A1 DD 28735486 A DD28735486 A DD 28735486A DD 28735486 A DD28735486 A DD 28735486A DD 247006 A1 DD247006 A1 DD 247006A1
- Authority
- DD
- German Democratic Republic
- Prior art keywords
- acetic acid
- acid amides
- diorganostannyldi
- alkyl
- ketene
- Prior art date
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Die Erfindung betrifft ein Verfahren zur Herstellung von Diorganostannyldi(essigsaeureamiden), die als Zwischenprodukte zur Synthese biocid wirksamer Verbindungen von Interesse sind. Ziel der Erfindung ist es, ein Verfahren zur Herstellung dieser Verbindungen zu entwickeln, das von einfach zugaenglichen Verbindungen ausgeht und keine aufwendigen Technologien voraussetzt. Das Verfahren zur Herstellung von Diorganostannyldi(essigsaeureamiden) der allgemeinen FormelR1 2Sn(CH2-C2)2,in der R1Alkyl, Aryl sein kann und R2Alkyl bedeutet, ist gekennzeichnet dadurch, dass Diorganodiaminostannane bei tiefen Temperaturen mit Keten umgesetzt werden.The invention relates to a process for the preparation of diorganostannyldi (acetic acid amides) which are of interest as intermediates for the synthesis of biocidally active compounds. The aim of the invention is to develop a process for the preparation of these compounds, which starts from easily accessible compounds and does not require complex technologies. The process for the preparation of diorganostannyldi (acetic acid amides) of the general formula R 1 2 Sn (CH 2 -C 2) 2, in which R 1 can be alkyl, aryl and R 2 alkyl, is characterized in that diorganodiaminostannanes are reacted with ketene at low temperatures.
Description
Im folgenden soll die Erfindung anhand von Beispielen näher erläutert werden:In the following the invention will be explained in more detail by means of examples:
Diphenylstannyldi(essigsäuredimethylamid)Diphenylstannyldi (essigsäuredimethylamid)
8,4g (0,02mol) Ph2Sn(NEt2I2 werden im Reaktionsgefäß in 2OmI Toluol vorgelegt. Man kühlt auf -200C und leitet innerhalb von 10 Minuten 1,7g (0,04mol) Keten ein. Die Reaktionsmischung wird zwei Stunden in der Kälte gerührt und anschließend auf Raumtemperatur erwärmt. Man entfernt das Toluol im Vakuum. Das resultierende Rohprodukt wird in THF gelöst. Man setzt 10 ml wäßriges TH F (Wassergehalt etwa 0,01 mol) zu. Das resultierende Diorganozinnoxid wird abfiltriert. Die leichtflüchtigen Bestandteile werden gemeinsam mit dem Lösungsmittel im Vakuum entfernt. Man erhält das Säureamid als hellgelbes Öl. Ausbeute: 73%8.4 g (0.02 mol) Ph 2 Sn (NEt 2 I 2 are introduced in the reaction vessel in 2OmI toluene. The mixture is cooled to -20 0 C and passes within 10 minutes 1.7 g (0.04 mol) a ketene. The reaction mixture is stirred in the cold for two hours and then warmed to room temperature, the toluene is removed in vacuo, the resulting crude product is dissolved in THF, 10 ml of aqueous THF (water content about 0.01 mol) are added and the resulting diorganotin oxide is filtered off The volatile constituents are removed in vacuo together with the solvent to give the acid amide as a pale yellow oil. Yield: 73%.
Dimethylstannyldi(essigsäured-imethylamid)Dimethylstannyldi (essigsäured-imethylamid)
8g (0,033 mol) Me2Sn(NMe2I2 werden im Reaktionsgefäß in 20 ml Hexan vorgelegt. Man kühlt auf-400C und leitet innerhalb von 15 Minuten 2,8g (0,066mol) Keten ein.8g (0.033 mol) of Me 2 Sn (NMe 2 I 2 are introduced into a reaction vessel in 20 ml of hexane. The mixture is cooled to -40 0 C and passes within 15 minutes 2.8 g (0,066mol) a ketene.
Man rührt zwei Stunden in der Kälte und erwärmt anschließend auf Raumtemperatur. Das resultierende Öl kann entweder analog zu Beispiel 1 gereinigt werden oder es wird im Vakuum unter Ausbeuteminderung destilliert.It is stirred for two hours in the cold and then warmed to room temperature. The resulting oil can either be purified analogously to Example 1 or it is distilled under reduced pressure to reduce yield.
Kp: 85°C/10~2 Torr Ausbeute: 46%Bp: 85 ° C / 10 ~ 2 torr yield: 46%
Phenylmethylstannyldi(essigsäuredimethylamid)Phenylmethylstannyldi (essigsäuredimethylamid)
7g" (0,023mol) PhMeSn(NMe2J2 werden im Reaktionsgefäß vorgelegt. Man kühlt auf -4O0C und leitet 1,95g (0,046molj'Keten7 g "(0.023 mol) of PhMeSn (NMe 2 J 2 are initially charged in the reaction vessel, cooled to -4O 0 C and 1.95 g (0.046molj'ketene
ein. · 'on. · '
Man rührt 2 Stunden in der Kälte und erwärmt anschließend auf Raumtemperatur. Die Reinigung erfolgt wie im BeispieM. Das Säureamid resultiert als hellgelbes Öl.-It is stirred for 2 hours in the cold and then warmed to room temperature. The cleaning takes place as in the example. The acid amide results as a pale yellow oil.
Ausbeute: 75%Yield: 75%
Claims (2)
R2 = AlkylR 1 = alkyl, aryl
R 2 = alkyl
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD28735486A DD247006A1 (en) | 1986-02-26 | 1986-02-26 | METHOD FOR PRODUCING DIORGANOSTANYLDI (ACETIC ACID AMIDES) |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD28735486A DD247006A1 (en) | 1986-02-26 | 1986-02-26 | METHOD FOR PRODUCING DIORGANOSTANYLDI (ACETIC ACID AMIDES) |
Publications (1)
Publication Number | Publication Date |
---|---|
DD247006A1 true DD247006A1 (en) | 1987-06-24 |
Family
ID=5576773
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DD28735486A DD247006A1 (en) | 1986-02-26 | 1986-02-26 | METHOD FOR PRODUCING DIORGANOSTANYLDI (ACETIC ACID AMIDES) |
Country Status (1)
Country | Link |
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DD (1) | DD247006A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220402946A1 (en) * | 2021-06-17 | 2022-12-22 | Egtm Co., Ltd. | Organo tin compound for thin film deposition and method for forming tin-containing thin film using same |
-
1986
- 1986-02-26 DD DD28735486A patent/DD247006A1/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220402946A1 (en) * | 2021-06-17 | 2022-12-22 | Egtm Co., Ltd. | Organo tin compound for thin film deposition and method for forming tin-containing thin film using same |
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