Iron-Catalyzed Alkylation of Alkenyl Grignard Reagents
作者:Gérard Cahiez、Christophe Duplais、Alban Moyeux
DOI:10.1021/ol7016092
日期:2007.8.1
The first iron-catalyzedcross-coupling reaction between alkenyl Grignard reagents and n- or s-alkyl bromides is described. The reaction is stereoselective and takes place in the presence of 5 mol % of [Fe(acac)3/TMEDA/HMTA] (1:2:1) under very mild conditions (THF, 0 degrees C, 45 min).
cross-coupling of alkylhalides with alkenylzinc reagents is described. Primary and secondary alkyl chlorides, bromides, and iodides take part in the reaction to give the corresponding olefins in good to excellent yields in a stereospecific manner. High functional group compatibility is also demonstrated by using combinations of substrates possessing rather reactivesubstituents.