Synthesis of ruthenium(iii) and rhodium(iii) tris-acetylacetonates and palladium(ii) bis-ketoiminate using microwave heating
作者:B. R. Chimitov、K. V. Zherikova、A. N. Mikheev、G. I. Zharkova、N. B. Morozova、I. K. Igumenov、A. V. Arzhannikov、M. K. A. Tumm
DOI:10.1007/s11172-012-0318-9
日期:2012.12
Preparation of ruthenium(iii) and rhodium(iii) tris-acetylacetonates and palladium(ii) bisketoiminate (Pd(i-acac)2) under microwave irradiation using different synthetic conditions, both in the solid-phase and in solution, was studied with precise control of parameters. In the solid-phase systems, the preparation of the target product was hindered. The efficiency of the microwave heating increased when liquid phases of the reagent mixtures were used. For Pd(i-acac)2, the highest yield was achieved under elevated temperature of the process, with the reaction time decreasing to several minutes. A laboratory procedure for the microwave synthesis of ruthenium(iii) and rhodium(iii) tris-acetylacetonates and palladium(ii) bis-ketoiminate in aqueous solutions was developed, which allowed us to obtain them in 85, 55, and 80% yields, respectively. These yields are higher than those reported in the literature, with the process becoming considerably less time consuming and laborious.
在不同合成条件下,利用微波辐射制备三乙酰丙酮铑(III)和铑(III)三乙酰丙酮盐以及二酮亚胺钯(Pd(i-acac)2),研究了固相和溶液中的精确参数控制。在固相系统中,目标产品的制备受到一定限制。当使用试剂混合物的液相时,微波加热的效率有所提高。对于Pd(i-acac)2,在较高温度的条件下,反应时间缩短至几分钟,从而实现了最高产率。开发了一种在水溶液中微波合成铑(III)和铑(III)三乙酰丙酮盐及二酮亚胺钯的实验室方法,分别获得了85%、55%和80%的产率。这些产率高于文献报道的结果,且该过程变得显著省时且省力。