In Situ Formation of Allyl Ketones via Hiyama−Nozaki Reactions Followed by a Chromium-Mediated Oppenauer Oxidation
作者:Henri S. Schrekker、Martin W. G. de Bolster、Romano V. A. Orru、Ludger A. Wessjohann
DOI:10.1021/jo001750u
日期:2002.4.1
dependent on the substitution pattern of the reaction partners and the reaction conditions. An appropriate choice of these can lead to preferential formation of ketones instead of the alcohols. In addition to its synthetic usefulness, the oxidation-reduction equilibrium is of the utmost importance for the design of enantioselective Hiyama-Nozaki reactions because it is also a potential racemization pathway
Copper-Catalyzed Diamination of Alkenes of Unsaturated Ketohydrazones with Amines
作者:Manman Chen、Li-Jing Wang、Pei-Xing Ren、Xiao-Ying Hou、Zhang Fang、Meng-Nan Han、Wei Li
DOI:10.1021/acs.orglett.7b03401
日期:2018.2.2
A convenient copper-catalyzed intra-/intermoleculardiamination of β,γ-unsaturated hydrazones has been developed with simple amines as external amine sources. The protocol enables efficient access to various nitrogen-containing pyrazolines under mild reaction conditions.
Graphite intercalation compounds as precursors of activated metals
作者:P. Marceau、L. Gautreau、F Béguin、G. Guillaumet
DOI:10.1016/0022-328x(91)83083-g
日期:1991.2
compound was used as metallic agent for the synthesis of various ν,γ-unsaturated ketones from nitriles and a allylichalide. In aromatic series, the reaction is not influenced by the groups present on the ring of the nitrile. The most striking feature of the reaction is that the chloro and bromo parent reagents have comparable reactivities; this is attributed to the fact that the reaction of the activated