Highly chemo- and stereoselective Fe-catalyzed alkenylation of organomanganese reagents
作者:Gérard Cahiez、Sophie Marquais
DOI:10.1016/0040-4039(96)00116-5
日期:1996.3
Organomanganese chlorides react with alkenyl iodides, bromides and chlorides in the presence of 3% Fe(acac)3. The reaction takes place under very mild conditions (THF-NMP, rt, 1h) to afford the substituted olefin in excellent yields with a high stereo- and chemoselectivity. Thus an unprotected keto alkenyl chloride selectively gives the corresponding keto olefin. From a preparative point of view, this
Carbon–Carbon Bond Formation by Cross Coupling of Enol Phosphates or Enol Triflates with Organomanganese Compounds
作者:Keigo Fugami、Koichiro Oshima、Kiitiro Utimoto
DOI:10.1246/cl.1987.2203
日期:1987.11.5
Trialkylmanganese-mediated alkylation of enol phosphates is performed in the presence of a catalytic amount of Pd(PPh3)4. The cross coupling reaction catalyzed by Li2MnCl4 between enol triflates and Grignard reagents is also described.