Enhanced Reaction Rate Due to Increased Substrate Solubility

Enhanced Reaction Rate Due to Increased Substrate Solubility 

A similar example is the monophasic reaction of 3-acetoxy-l,3- diphenylpropene with dimethyl malonate in [BMIM]BF4 192). The product was obtained in 91% yield after 5 h at room temperature with a Pd(OAc)2/PPh3 catalyst and K2CO3 as the base. 

A unique opportunity was created for the carbonylation of alkylamines or aromatic amines with CO2 in CsOH-treated [BMIM]C1, as both reactants have sufficient solubility in the ionic liquid. The products are symmetric urea derivatives. Yields 90% were obtained from the carbonylation of alkylamines, but lower yields were obtained with aromatic amines. The products precipitated when water was added 193). 

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A.9. Enhanced Reaction Rate Due to Increased Substrate Solubility... 

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