868258-13-3Relevant academic research and scientific papers
Asymmetric intramolecular alkylation of chiral aromatic imines via catalytic C-H bond activation
Watzke, Anja,Wilson, Rebecca M.,O'Malley, Steven J.,Bergman, Robert G.,Ellman, Jonathan A.
, p. 2383 - 2389 (2008/03/13)
The asymmetric intramolecular alkylation of chiral aromatic aldimines, in which differentially substituted alkenes are tethered meta to the imine, was investigated. High enantioselectivities were obtained for imines prepared from aminoindane derivatives, which function as directing groups for the rhodium-catalyzed C-H bond activation. Initial demonstration of catalytic asymmetric intramolecular alkylation also was achieved by employing a sterically hindered achiral imine substrate and catalytic amounts of a chiral amine. Georg Thieme Verlag Stuttgart.
Total synthesis of (+)-lithospermic acid by asymmetric intramolecular alkylation via catalytic C-H bond activation
O'Malley, Steven J.,Tan, Kian L.,Watzke, Anja,Bergman, Robert G.,Ellman, Jonathan A.
, p. 13496 - 13497 (2007/10/03)
The total synthesis of (+)-lithospermic acid is described. The efficient synthesis features an asymmetric alkylation via C-H bond activation to assemble the dihydrobenzofuran core of the natural product. This was accomplished via a chiral imine-directed C
