Highly stereo- and regioselective ni-catalyzed homoallylation of aldimines with conjugated dienes promoted by diethylzinc.

Under the nickel catalysis, in one pot, diethylzinc serves as a reducing agent to connect the three components of 1,3-dienes, alkyl or aryl aldehydes, and anilines to furnish 3-substituted 3,5-syn-5-(arylamino)pent-1-enes 1, the homoallylation products of aldimines with dienes, in excellent yields and with high regio- and stereoselectivity.