We have developed the Morita-Baylis-Hillman reaction to include, for the first time in a completely organomediated process, intramolecular examples bearing allylic leaving groups as the electrophilic partner providing a facile, high yielding, straightforward synthesis of densely functionalized cyclic molecules.
Catalytic Enone Cycloallylation via Concomitant Activation of Latent Nucleophilic and Electrophilic Partners: Merging Organic and Transition Metal Catalysis
作者:Bradley G. Jellerichs、Jong-Rock Kong、Michael J. Krische
DOI:10.1021/ja0301469
日期:2003.7.1
Upon exposure of mono-enone mono-allylic carbonates to tributylphosphine and 1 mol % Pd(Ph3P)4, efficient conversion to the corresponding cycloallylated products is achieved. This transformation combines the nucleophilic features of the Morita-Baylis-Hillman reaction with the electrophilic features of the Trost-Tsuji reaction.
The intramolecular Morita–Baylis–Hillman-type alkylation reaction
作者:John W. Cran、Marie E. Krafft、Kimberly A. Seibert、Thomas F.N. Haxell、James A. Wright、Chitaru Hirosawa、Khalil A. Abboud
DOI:10.1016/j.tet.2011.09.061
日期:2011.12
From the initial development of a homologous Morita–Baylis–Hillman reaction utilizing epoxides as electrophiles, the method was expanded to enable the exclusively organocatalyzed intramolecular allylation of enones and to develop the intramolecular MBH-type alkylation of activated alkenes. We successfully utilized both enones and unsaturated thioesters as the activated alkene component. This work,