Investigation of a novel diamine based chiral auxiliary in the asymmetric alkylation of ketones
作者:Sarah L. Clarke、Christina M. McSweeney、Gerard P. McGlacken
DOI:10.1016/j.tetasy.2014.01.006
日期:2014.2
A Novel Palladium-Catalyzed Intramolecular Redox Reaction
作者:Klemens Högenauer、Johann Mulzer
DOI:10.1021/ol015813m
日期:2001.5.1
[reaction: see text] A new type of palladium-catalyzed redox reaction is described, forming enones from 2-(2-bromobenzyl)-ketones with an overall loss of HBr. The scope and limitations of the reaction are demonstrated by a series of cyclic and acyclic substrates. The mechanism most probably involves the formation of an intramolecular arylpalladium enolate and is related to the oxidation of silyl enol
Efficient synthesis of 2- and 3-substituted indenes from 2-bromobenzyl bromide through an enolate alkylation/Cr(II)/Ni(II)-mediated carbonyl addition sequence
作者:Ronald L. Halterman、Chengian Zhu
DOI:10.1016/s0040-4039(99)01541-5
日期:1999.10
efficient new synthesis of 2- and 3-substituted indenes has been developed based on the nickel-catalyzed chromium(II)-promoted addition of aryl bromides to a tethered ketone carbonyl. Several tethered bromoaryl ketones were prepared through enolatealkylation of acyclic or cyclic ketones with 2-bromobenzyl bromide. Nozaki-Takai-Hiyama-Kishi closure of the resulting bromoaryl ketones followed by acid promoted