Electronic Control of the Bergman Cycloaromatization: Synthesis and Chemistry of Chloroenediynes
作者:Graham B. Jones、Gary W. Plourde
DOI:10.1021/ol0059394
日期:2000.6.1
[reaction: see text] A series of cyclic mono- and dichloroenediynes have been prepared using an intramolecular carbenoid coupling reaction. The halogen atom had a retardative effect on Bergmancycloaromatization in every case examined, and atom transfer chemistry was demonstrated, resulting in formation of adducts.
Halo-Enediynes: Probing the Electronic and Stereoelectronic Contributions to the Bergman Cycloaromatization
作者:Gary W. Plourde、Philip M. Warner、Dennis A. Parrish、Graham B. Jones
DOI:10.1021/jo025763e
日期:2002.7.1
strategy. DFT analysis, initially used to identify synthesis candidates, was also employed to rationalize the propensity for cycloaromatization of the compounds. In all cases studied the halogen atom had a strongly retardative effect on the thermal Bergmancycloaromatizationreaction. The isolation of the first C-9 monochloroenediyne is noteworthy, and may find application in prodrug design.