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Suzuki-Miyaura reactions provide a simple and effective synthetic route to biaryls by using a wide range of palladium catalysts 1,2 . Our group has recently showed that 2-hydroxypropyl-α-cyclodextrin is an effective green reductant/capping agent for the preparation of Pd nanoparticles 3 with good catalytic activity in C-C cross-couplings in water. In this work, we present our findings concerning the effect of different β-CDs on the room-temperature SuzukiMiyaura reaction between phenylboronic acid and 4bromoacetophenone in the isopropyl alcohol-water system. The results suggest that the nature of the substituents and CD concentration play a role in the catalysis.

Room-temperature Suzuki-Miyaura reactions mediated by native and derivatized b−cyclodextrins