PL2956B3 - The method of obtaining arsenobenzole derivatives, stable in solution. - Google Patents
The method of obtaining arsenobenzole derivatives, stable in solution. Download PDFInfo
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- PL2956B3 PL2956B3 PL2956A PL295623A PL2956B3 PL 2956 B3 PL2956 B3 PL 2956B3 PL 2956 A PL2956 A PL 2956A PL 295623 A PL295623 A PL 295623A PL 2956 B3 PL2956 B3 PL 2956B3
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- solution
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- arsenobenzole
- derivatives
- stable
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Najdluzszy czas trwania patentu do 18 pazdziernika 1939 r, W patencie Nr 819 opisano sposób o- trzymywania preparatów bardzo trwalych przez polaczenie pochodnej podsiarczyno- wej dowolnego arsenobenzolu z dowolnym arsenobenzolem.Obecnie wykryto, ze polaczenie zwiaz¬ ku dwusiarczynowego aldehydu mrówko¬ wego arsenobenzolu równiez z dowolnym arsenobenzolem prowadzi do produktów, odznaczajacych sie wielka trwaloscia i cen- nemi wlasnosciami leczniczemi. Polaczenie to mozna uskutecznic na drodze suchej, w roiztworze lub w zawiesinie.Przyklad. 3 g zwiazku jednoaldehydo- dwusiarezynu mrówkowego dwuoksydwu- aminoarsenobenzolu rozpuszcza sie w 10 cni3 H20, nastepnie 3 g zwiazku sirebro- wosodowego dwuoksydwuaminoarsenoben- zolu równiez w 10 cm3 H20. Oba roztwory laczy sie i pozostawia w atmosferze azotu w ciagu godziny, niekiedy je podgrzewajac.Roiztwór wlewa sie do alkoholu uzytego w ilosci okolo 1% 1, poozem cialo wytracone odsaczai sie. Zwiazek otrzymany stanowi proszek o barwie brunatnej, przechodzacej w brunatnoczarna, rozpuszczalny w wodzie c odczynie alkalicznym, a nierozpuszczalny w alkohoiloeterze. C02 nie wytraca go z roztworu wodnego.Zamiast jednoaldehydii mrówkowegok mozna wziac dwiialdehyd mrówkowy, a ó- trzyma sie preparat o wlasnosciach podob¬ nych. PL PLThe longest patent period, until October 18, 1939, describes a method for obtaining highly stable preparations by combining a hydrosulfite derivative of any arsenobenzene with any arsenobenzene. It has now been discovered that combining the disulfite compound of arsenobenzene formaldehyde with any arsenobenzene also leads to products characterized by great stability and valuable medicinal properties. This combination can be achieved dry, in solution, or in suspension. Example. 3 g of the compound monoaldehyde-disulfide formaldehyde dioxydiaminoarsenobenzole is dissolved in 10 cm3 H2O, then 3 g of the compound sodium dioxydiaminoarsenobenzole also in 10 cm3 H2O. Both solutions are combined and left under nitrogen for an hour, occasionally warming. The solution is poured into approximately 1% alcohol, and the precipitate is filtered off. The resulting compound is a brown powder, turning brownish-black, soluble in alkaline water but insoluble in alcohol ether. CO2 does not precipitate it from aqueous solution. Instead of monoformaldehyde, diformaldehyde can be used, and a preparation with similar properties is obtained.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL2956B3 true PL2956B3 (en) | 1925-10-31 |
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