C−C Bond-Forming Reactions via Pd-Mediated Decarboxylative α-Imino Anion Generation
摘要:
alpha-Imino anions are generated under neutral reaction conditions via a Pd-mediated decarboxylation of allyl diphenylglycinate imines with concomitant formation of a pi-allylpalladium species. The resulting delocalized anion can attack the pi-allyl-Pd(II) species or be intercepted by aldehydes to afford homoallylic amines or protected 1,2-amino alcohols, respectively.
C−C Bond-Forming Reactions via Pd-Mediated Decarboxylative α-Imino Anion Generation
摘要:
alpha-Imino anions are generated under neutral reaction conditions via a Pd-mediated decarboxylation of allyl diphenylglycinate imines with concomitant formation of a pi-allylpalladium species. The resulting delocalized anion can attack the pi-allyl-Pd(II) species or be intercepted by aldehydes to afford homoallylic amines or protected 1,2-amino alcohols, respectively.
One-Pot Tandem Decarboxylative Allylation−Heck Cyclization of Allyl Diphenylglycinate Imines: Rapid Access to Polyfunctionalized 1-Aminoindanes
作者:Wendy H. Fields、Ali K. Khan、Michal Sabat、Jason J. Chruma
DOI:10.1021/ol801986m
日期:2008.11.20
1-Aminoindanes are generated from allyl diphenylglycinate imines employing a "one-pot" palladium-catalyzed decarboxylative allylation-Heck cyclization cascade. Variation of both the aryl and allyl moieties leads to a diverse range of polycyclic imines, amenable to the synthesis of natural products and other biologically relevant small molecules.