PL443B1 - Method for producing esters of diethyl dioxide sulphide. - Google Patents

Method for producing esters of diethyl dioxide sulphide. Download PDF

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Publication number
PL443B1
PL443B1 PL443A PL44321A PL443B1 PL 443 B1 PL443 B1 PL 443B1 PL 443 A PL443 A PL 443A PL 44321 A PL44321 A PL 44321A PL 443 B1 PL443 B1 PL 443B1
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PL
Poland
Prior art keywords
sulphide
diethyl dioxide
diethyl
producing esters
parts
Prior art date
Application number
PL443A
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Polish (pl)
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Publication date
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Publication of PL443B1 publication Critical patent/PL443B1/en

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Stwierdzono, ze mozna otrzymac siarczek dwutlenku dwuetylowego przez nagrzewanie go z kwasami organiczne- mi lub nieorganicznemi. Pod mianem kwasów rozumiemy równiez te, zawie¬ rajace wodorotlenek zwiazki, które, jak to ma miejsce np. z wodorotlenkiem glinu, kwasza bardzo slabo i posiadaja charakter dwoisty. Szczególnie przy zastosowaniu kwasów mineralnych na¬ lezy dbac o dobranie warunków tak la¬ godnych, aby nie zaszlo latwo mogace sie przytrafic powstawanie siarczku dwu- etylenotlenowego z siarczku dwutlenku etylowego.Przyklad 1.Szesc czesci na wage bezwodnika kwasu octowego nagrzewamy, z odply¬ wem wstecznym, do 120°, dodajac don zwolna, kroplami piec czesci wagowych siarczku dwutlenku dwuetylowego. Po ukonczeniu reakcji destylujemy w próz¬ ni, przyczem przechodzi okolo 5 cze¬ sci wagowych nowego estru dwuetylo¬ wego przy 142—150° i 12 mm cisnienia.Otrzymany w ten sposób klarowny plyn, który, w przeciwienstwie do produktu wyjsciowego, z woda sie nie miesza, daje nastepujace wyniki analizy; Znaleziono S—15,73% C-46,61% H— 6,99% Obliczono dla C8H1404S S—15,5% C—46,6% H-6,79% Ester acetylowy mozna wytwarzac równiez przez stosowanie octu lodowa¬ tego lub rozcienczonego kwasu octo-wego, podobnie, jak to podano w przy¬ kladzie 2-im dla kwasu mrówkowego.Przyklad 2.Jedna czesc na wage siarczku dwu¬ tlenku etylowego nagrzewamy przez trzy godziny z 5 czesciami wagowemi 90% kwasu mrówkowego, poczem odpedza sie zbyteczny kwas mrówkowy. Pozo¬ stajacy w wodzie nierozpuszczalny eter diformylowy odpedza sie w ilosci mniej wiecej równoznacznej przy 7 mm i 130—137°.Przez podstawienie w przykladzie 1, zamiast bezwodnika kwasu octowego, innych bezwodników, np. kwasu benzo¬ esowego lub ftalowego, powstaja rów¬ niez odpowiednie estry.Przyklad 3. 244 czesci tiodwuglikolu nagrzewamy z 2000 czesciami kwasu siarczanego (podwójnej normalnosci) w prózni do zupelnego odpedzenia wody. Pozostaje gumowaty osad, latwo dajacy sie zetrzec na biala bezksztaltna mase znacznej objetosci i elastyczna. Otrzymany w ten sposób ester kwasu siarczanego mozna traktowac woda lub alkoholem. Po dluz- szem odstaniu z woda, otrzymany ester kwasu siarczanego przechodzi w postac galaretowata. Mozna zen otrzymac od¬ powiednie sole estrów kwasu siarcza¬ nego thiohydrynowego, przez zmiesza¬ nie, np. z weglanami lub wodorotlen¬ kami.Przyklad 4. 244 czesci tiodwuglikolu nagrzewa¬ my z 3000 czesci pasty np. 5% wodoro¬ tlenku glinowego w prózni, az do zu¬ pelnego odpedzenia wody. Pozostaly galaretowaty osad mozna zastosowac do wskazanych celów, badz to bezpo¬ srednio, badz w rozcienczeniu, np. z thio- dwuglikolem. PLIt has been found that diethyl dioxide sulphide can be obtained by heating it with organic or inorganic acids. Acids are also understood to mean those hydroxide-containing compounds which, as is the case with aluminum hydroxide, for example, are very weak and have a dual character. Especially when using mineral acids, care should be taken to select conditions that are so mild that the formation of diethylene oxide sulphide from ethyl dioxide sulphide, which may occur, does not occur. Example 1 We heat up some parts of the weight of acetic anhydride with drainage. retrograde, up to 120 °, adding the don slowly, dropwise five parts by weight of diethyl dioxide sulfide. After the reaction is complete, we distill in a vacuum, with about 5 parts by weight of the new diethyl ester passing at 142-150 ° and 12 mm pressure. The resulting clear liquid, which, unlike the starting product, turns into water. does not mix, gives the following analysis results; Found S — 15.73% C — 46.61% H — 6.99% Calculated for C8H1404S S — 15.5% C — 46.6% H — 6.79% Acetyl ester can also be produced by using ice vinegar of this or diluted acetic acid, similarly to the example given in example 2 for formic acid. Example 2: One part by weight of the ethyl oxide sulphide is heated for three hours with 5 parts by weight of 90% formic acid, then unnecessary formic acid is chased away. The water-insoluble diphormyl ether is stripped off approximately equivalent to 7 mm and 130-137 °. By substituting in example 1, for acetic acid anhydride, other anhydrides, e.g. benzoic acid or phthalic acid, are formed. not suitable esters. Example 3. We heat 244 parts of thiodiglycol with 2000 parts of sulfuric acid (double normal) in a vacuum until the water is completely drained. A rubbery deposit remains, easily rubbed off into a white, shapeless mass of considerable volume and elastic. The sulfuric ester obtained in this way can be treated with water or alcohol. After a longer standing with water, the obtained sulfuric acid ester turns into a gelatinous form. The corresponding salts of the sulfated esters of thiohydrinic acid can be obtained by mixing e.g. with carbonates or hydroxides. Example 4 244 parts of thiodiglycol are heated with 3000 parts of paste, e.g. vacuum until the water is completely drained. The remaining gelatinous precipitate can be used for the indicated purposes, either directly or in dilution, eg with thio-diglycol. PL

Claims (2)

Zastrzezenia patentowe. 1. Sposób otrzymywania estrów siarcz¬ ków dwutlenku dwuetylowego (dioxy- diaethylsulfid), tern znamienny, ze na ten ostatni dzialamy kwasami nieorga- nicznemi.Patent claims. 1. The method of obtaining esters of diethyl dioxide (dioxy-diaethylsulfide), characterized by the fact that the latter is treated with inorganic acids. 2. Sposób otrzymywania estrów siarcz¬ ków dwutlenku dwuetylowego (dioxy- diaethylsulfid), tern znamienny, ze na ten ostatni dzialamy kwasami organicz- nemi. Farbwerke vorm. Meister Lucius & Briining. Zastepca: M. Skrzypkowski, rzecznik patentowy. ZAKL6RAf.K0ZIAI*SUCH W WARSZAWIE PL2. The method of obtaining esters of diethyl dioxide (dioxy-diaethylsulfide), characterized by the fact that the latter is treated with organic acids. Farbwerke vorm. Meister Lucius & Briining. Deputy: M. Skrzypkowski, patent attorney. ZAKL6RAf.K0ZIAI * SUCH IN WARSAW PL
PL443A 1921-03-01 Method for producing esters of diethyl dioxide sulphide. PL443B1 (en)

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PL443B1 true PL443B1 (en) 1924-08-30

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