Trifluoromethylation of Allylsilanes under Copper Catalysis
作者:Satoshi Mizuta、Oscar Galicia-López、Keary M. Engle、Stefan Verhoog、Katherine Wheelhouse、Gerasimos Rassias、Véronique Gouverneur
DOI:10.1002/chem.201201707
日期:2012.7.9
Branched allylic CF3 products are accessible by copper‐catalyzed trifluoromethylation of allylsilanes with the Togni reagent I. The silyl group is critical to control the outcome of this reaction because in its absence, a product of addition between the alkene and the Togni reagent is formed preferentially. The reaction is inhibited with 2,2,6,6‐tetramethyl‐1‐piperidinyloxy (TEMPO) and is likely to
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.