PL18606B1 - Method for the production of iodomethylsulfonic acid or its salts. - Google Patents

Method for the production of iodomethylsulfonic acid or its salts. Download PDF

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Publication number
PL18606B1
PL18606B1 PL18606A PL1860631A PL18606B1 PL 18606 B1 PL18606 B1 PL 18606B1 PL 18606 A PL18606 A PL 18606A PL 1860631 A PL1860631 A PL 1860631A PL 18606 B1 PL18606 B1 PL 18606B1
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PL
Poland
Prior art keywords
salts
acid
iodomethylsulfonic
production
sodium
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Application number
PL18606A
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Polish (pl)
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Publication date
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Publication of PL18606B1 publication Critical patent/PL18606B1/en

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Patent polski Nr. 17259 ochrania sposób wytwarzania kwasu jodometylosulfonowe¬ go, wzglednie jego soli. Sposób polega na tern, ze jodek metylenu zadaje sie obojet- nemi, najkorzystniej rozpuszczalnemi w wodzie, siarczynami i produkt reakcji prze¬ prowadza ewentualnie w inne sole. Przy dalszem opracowywaniu tej dziedziny stwierdzono obecnie, ze kwas jodometylo- suilfonowy, wzglednie jego sole, mozna rów¬ niez wytwarzac z korzyscia i w ten sposób, ze sole kwasu chlorometylosulfonowego ogrzewa sie w wodzie lub w rozpuszczalni¬ kach organicznych do temperatur wyz¬ szych z jodkami alkalicznemi lub z jodka¬ mi ziem alkalicznych. Najlepiej ogrzewac do 200°C, chociaz reakcja zachodzi i w temperaturach ponizej 200°C Zmiana tem¬ peratury wplywa na czas pracy, wobec cze¬ go w kazdym poszczególnym wypadku na¬ lezy dobrac tak temperature, aby otrzymac gospodarczo najkorzystniejsze wyniki.Przyklad I. 152,5 czesci wagowych chloiometyloisulfonianu sodowego rozpu¬ szcza sie w 305 czesciach wagowych wody, zadaje 150 czesciami wagowemi bezwodne¬ go jodku sodowego i ogrzewa w ciagu 20 godzin w zamknietem naczyniu do tempe¬ ratury okolo 190°. Nastepnie mase reakcyj¬ na odparowuje sie do sucha i z pozostalosci wyciaga alkoholem metylowym utworzony jodometylosulfonian sodowy. Jest on iden-tyczny z jodometylosulfoniariem sodowym, otrzymanym wedlug przykladu I patentu Nr. 17259. Zamiast wody mozna stosowac równiez rozpuszczalniki organiczne, jak np alkohol.Przyklad II. 15 czesci wagowych chlo- rometylosulfonianu sodowego i 15 czesci wagowych jodku sodowego ogrzewa sie w ciagu 10 godzin do 190° -^ 200°C w 30 cze¬ sciach wagowych glikolu etylenowego, przy- czem po poczatkowem rozpuszczeniu sie na¬ stepuje stopniowe wydzielanie chlorku so¬ dowego. Nastepmie daje sie ostygnac, zada¬ je gaszcz krystaliczny acetonem, odsacza i pozostaly jodometylosulfonian sodowy przekrystalizowuje z alkoholu metylowego. PLPolish patent No. 17259 protects the production of iodomethylsulfonic acid or its salts. The method consists in treating the methylene iodide with inert, most preferably water-soluble, sulfites and converting the reaction product into other salts. In the further development of the field it has now been found that iodomethylsulfonic acid or its salts can also be prepared with the advantage and thus that the salts of chloromethylsulfonic acid are heated in water or in organic solvents to higher temperatures with iodides. with alkaline or with alkaline earth iodides. It is best to heat to 200 ° C, although the reaction takes place at temperatures below 200 ° C. Temperature variation affects the working time, so that in each individual case the temperature should be selected so as to obtain the economically best results. 5 parts by weight of sodium chloromethyl sulphonate are dissolved in 305 parts by weight of water, mixed with 150 parts by weight of anhydrous sodium iodide and heated for 20 hours in a closed vessel to a temperature of about 190 °. The reaction mass is then evaporated to dryness and the sodium iodomethyl sulfonate formed is taken up from the residue with methyl alcohol. It is identical to sodium iodomethyl sulfonate obtained according to example 1 of patent No. 17259. Organic solvents, such as alcohol, may also be used instead of water. Example II. 15 parts by weight of sodium chloromethyl sulfonate and 15 parts by weight of sodium iodide are heated in 10 hours to 190 ° - ^ 200 ° C in 30 parts by weight of ethylene glycol, with the gradual release of sodium chloride after initial dissolution. May. It is then allowed to cool, quenched with acetone, filtered and the remaining sodium iodomethyl sulfonate recrystallized from methyl alcohol. PL

Claims (1)

1. Zastrzezenie patentowe. Sposób wytwarzania kwasu jodomety- losulfonowego, wjzglednie jego soli, zna¬ mienny tern, ze sole kwasu chlorometylo- sulfonowego ogrzewa sie do temperatur wyzszych, najkorzystniej do mniej wiecej 200°C, w wodzie lub w rozpuszczalniku or¬ ganicznym z jodkami alkalicznemi * albo z jodkami ziem alkalicznych. L G. Farbenindustrie Aktiengesellschaft. Zastepca: M. Skrzypkowski, rzecznik patentowy. Druk L. Boguslawskiego i Ski, Warszawo1. l PL1. Patent claim. The method of producing iodomethylsulfonic acid, including its salts, involves heating the salts of chloromethylsulfonic acid to higher temperatures, most preferably to about 200 ° C, in water or in an organic solvent with alkali iodides or with alkaline earth iodides. L. G. Farbenindustrie Aktiengesellschaft. Deputy: M. Skrzypkowski, patent attorney. Print by L. Boguslawski and Ski, Warsaw1. l PL
PL18606A 1931-04-02 Method for the production of iodomethylsulfonic acid or its salts. PL18606B1 (en)

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PL18606B1 true PL18606B1 (en) 1933-08-31

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