Tsuji-Wacker Oxidation of Terminal Olefins using a Palladium-Carbon Nanotube Nanohybrid
作者:Simon Donck、Edmond Gravel、Nimesh Shah、Dhanaji V. Jawale、Eric Doris、Irishi N. N. Namboothiri
DOI:10.1002/cctc.201500241
日期:2015.8.3
Palladium nanoparticles supported on carbon nanotubes were used in the Tsuji–Wacker oxidation. The palladium‐based nanohybrid was found to be very active in combination with cuprous chloride for the selective oxidation of terminal olefins into methyl ketones. The co‐catalytic system operates under very mild and sustainable conditions (room temperature, atmospheric pressure, low catalyst loading), as
The First Conversion of Primary Alkyl Halides to Nitroalkanes under Aqueous Medium
作者:Roberto Ballini、Luciano Barboni、Guido Giarlo
DOI:10.1021/jo049048b
日期:2004.10.1
obtained in aqueous medium by reaction of the corresponding halo derivatives with silver nitrite. The procedure works well with both alkyl bomide and alkyliodide and proceeds in satisfactory to good yields even in the presence of other functionalities, minimizing the formation of the undesired alkylnitrites.
A New Synthesis of <b><i>exo</i></b>-Methylene Butyrolactones from Nitroalkanes
作者:Roberto Ballini、Giovanna Bosica、Damiana Livi
DOI:10.1055/s-2001-16098
日期:——
A versatile route to exo-methylene butyrolactones was developed by employing a three step reaction sequence consisting of Michael addition of primary nitroalkanes 1 to ethyl (2-bromomethyl)acrylate (2), then Nef conversion of the nitro derivatives 3, and subsequent lactonization of the obtained keto esters 4. The method is chemoselective for important functionalities such as ester, C=C double bond and hydroxyl.
Michael Addition of Nitroalkanes to Dimethyl Citraconate, with DBU as Base: An Unexpected, One-Pot Synthesis of Polyfunctionalized Carbonyl Derivatives
作者:Roberto Ballini、Luciano Barboni、Giovanna Bosica、Dennis Fiorini、Maria Victoria Gil
DOI:10.1055/s-2002-34209
日期:——
Michael addition of nitroalkanes to dimethyl citraconate, with DBU as base, allows the onepot formation of keto diesters. The reaction proceeds through an equilibrium form of the acceptor, followed by Michael addition ofthe nitroalkane and then, in situ Nef conversion.
Tosylates and mesylates were directly converted into the corresponding nitroalkanes, by their treatment with tetrabutylammonium nitrite (TBAN) under mild conditions.