using task-specificionicliquids as soluble supports to perform solution-phase synthesis is reported as a new tool for chemical applications. The negligible volatility of ionicliquids enables their use as stable droplet reactors on a chip surface under air. The concept was validated with different ionicliquids and with a multicomponent reaction. Indeed, we showed that different ionicliquids can be
Reaction Rates as a Function of Scale within Ionic Liquids: Microscale in Droplet Microreactors versus Macroscale Reactions in the Case of the Grieco Three-Component Condensation Reaction
illustrated by a study of the Griecothree-componentreaction in [tmba][NTf(2)]-droplet (tmba=N-trimethyl-N-butylammonium NTf(2)=bis(trifluoromethylsulfonyl)imide) microreactors. A detailed study of matrices and scale effects on conversion and kinetic rates of this three-componentcondensation is presented in this paper. Reactions have been shown to be slower in droplets than in batches in the absence
application of the use of task specific onium salts (TSOSs) as solublesupports in Grieco ’s multicomponent synthesis of tetrahydroquinolines. These solublesupports are of wide applicability and combine advantages of solid phase synthesis without its limitations with those of solution phase chemistry. After a simple washing step, products were cleaved from the supports and obtained in pure form and good yields
By using an ammonium chloride salt as water solubilizing moiety, our oniumsaltsupported organic synthesis strategy was extended to water as a solvent. This method allows for high loading capacities both of the supports and their solutions owing to low molecular weight of the onium salts and simplified purification steps as well.