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The addition of organocuprates to α,β-unsaturated substrates, namely E-cinamaldehyde and 2cyclohexen-1-one, was studied in THF. The furan moiety was chosen for the heterocuprate, because the methods for the synthesis of furan derivatives are scarce and they have a strong potentiality for tandem reactions. The performance of CuBr; CuBr.SMe 2 and CuCN as copper precursors was examined: the higher yields of the 1,4-addition product were obtained using CuCN. The reaction with 2-cyclohexen-1-onedoi:10.3998/ark.5550190.0009.613 fatcat:il3bshnrpfbxvn26daktt5io3u