Electrochemical dicarboxylation of phenyl-substituted alkenes in the presence of atmospheric pressure of carbon dioxide with a platinum plate cathode and a magnesium rod anode readily took place efficiently in a DMF solution containing 0.1 M Et4NClO4 to give the corresponding 1,2-dicarboxylic acids in high yields.
在含有0.1 M Et4NClO4的DMF溶液中,使用铂板作为阴极和镁棒作为阳极,在存在二氧化碳大气压的条件下,苯基取代的烯烃的电化学二羧基化反应高效地进行,并以高产率得到相应的1,2-二羧酸。
Palladium-Catalyzed Allylic Alkylation of Doubly Deprotonated Carboxylic Acids
作者:Manfred Braun、Panos Meletis、Robin Visse
DOI:10.1002/adsc.201100372
日期:2011.12
Doublydeprotonatedcarboxylicacids undergo smooth palladium-catalyzed carbon alkylations with the allylic substrates methyl allyl carbonate and (E)-methyl (pent-3-en-2-yl) carbonate to give γ,δ-unsaturated carboxylicacids. A diastereoselective and enantioselective protocol leads to (2S,3R)-hexenoic acid in 87% ee.