Sodium malonate

Xem 1-2 trên 2 kết quả Sodium malonate

Ion-pair based liquid–liquid extraction of gold(III) from malonate media using 2-octylaminopyridine as an extractant: Analysis of alloys, minerals, and drug samples

Liquid–liquid extraction of Au(III) from aqueous sodium malonate medium using 2-octylaminopyridine (2-OAP) as an extractant in xylene was achieved. The current work explored the influence of several experimental parameters such as pH, weak acid concentration, extractant concentration, equilibrium time, stripping agents, and aqueous:organic volume ratio on the extraction of Au(III). The experimental results showed that the Au(III) was quantitatively extracted to about 99.5% by 0.05 M 2-OAP in 0.05 M malonate at 5.0 pH.

22p tudichquannguyet 29-11-2021 5 2 Download

Nghiên cứu cải tiến phương pháp tổng hợp furoquinolin ancaloit -fagarin

Recently, some of the furoquinoline alkaloids were found to have an interesting biological activity, for example, anti-cancer, antiplatelet aggregation and antifungal activities. The interesting biological activity made these compounds 1-13 attractive targets in organic chemistry. A novel generally applicable synthesis of furoquinolines is described. The condensation of 2- methoxy aniline and malonic acid in the presence of POCl3 gave 2,4-dichloro-8- methoxyquinoline. Then, treatment of this compound with sodium methoxide in methanol under reflux afforded 4,8-dimethoxyquinoline.

5p uocvong04 24-09-2015 67 4 Download