| abstract |
The present invention relates to a kind of method for preparing rhodium (I) salt [RhL 2 ] + A - and [Rh I (CO) 2 Cl] 2 complex, preparing rhodium (I) salt [RhL 2 ] + A - The step of the complex comprises: under the protection of inert gas, a certain amount of dilute acid aqueous solution is added dropwise to the dichloromethane solution of acetylacetonate dicarbonyl rhodium ( I )RhI (CO) 2 (acac), and then Ligand L is added to the reaction solution, and the reaction is carried out at a suitable temperature for a certain period of time to stop the reaction. At room temperature, through extraction, liquid separation, collecting the organic phase solution containing the product, rotary evaporation to remove the solvent, and vacuum drying to obtain [RhL 2 ] + A ‑ . The method for preparing rhodium dicarbonyl chloride dimer [Rh I (CO) 2 Cl] 2 complex is to use dilute hydrochloric acid to treat Rh I (CO) 2 (acac) to efficiently generate rhodium dicarbonyl chloride dimer [Rh I (CO) 2 Cl] 2 . The synthesis process of the method is simple and intuitive, no new chemical reagents and impurities are introduced, the synthesis cost is low, and there are no by-products. Very suitable for industrial production. |