Pd(II)-Catalyzed Intramolecular Amidoarylation of Alkenes with Molecular Oxygen as Sole Oxidant
摘要:
Stereoselective palladium-catalyzed synthesis of structurally versatile indoline derivatives, using molecular oxygen as the sole oxidant, is described. New C-N and C-C bonds form across an alkene in an intramolecular manner. The C-N bond-forming step proceeds via a syn-amidopalladation pathway. The moderate kinetic isotope effects (intramolecular KIE = 3.56) suggest that electrophilic aromatic substitution occurs in the arylation step.
Pd(II)-Catalyzed Intramolecular Amidoarylation of Alkenes with Molecular Oxygen as Sole Oxidant
摘要:
Stereoselective palladium-catalyzed synthesis of structurally versatile indoline derivatives, using molecular oxygen as the sole oxidant, is described. New C-N and C-C bonds form across an alkene in an intramolecular manner. The C-N bond-forming step proceeds via a syn-amidopalladation pathway. The moderate kinetic isotope effects (intramolecular KIE = 3.56) suggest that electrophilic aromatic substitution occurs in the arylation step.
Nickel(0)-katalysierte bildung von carbocyclischen amiden aus α,ω-dienen und phenylisocyanat
作者:Elisa Hernandez、Heinz Hoberg
DOI:10.1016/0022-328x(87)80256-5
日期:1987.7
Phenyl isocyanate reacts readily with 1,5-hexadiene and a (ligand)nickel(0) system forming two regioisomeric azanickela-five ring complexes by CC-coupling at −10°C. On warming, subsequent reactions eventually yield five-membered carbocyclic amides by intramolecular cyclisation. It has been found that by using a special experimental procedure - continuous slow addition of the isocyanate to a solution
Pd(II)-Catalyzed Intramolecular Amidoarylation of Alkenes with Molecular Oxygen as Sole Oxidant
作者:Kai-Tai Yip、Dan Yang
DOI:10.1021/ol2006083
日期:2011.4.15
Stereoselective palladium-catalyzed synthesis of structurally versatile indoline derivatives, using molecular oxygen as the sole oxidant, is described. New C-N and C-C bonds form across an alkene in an intramolecular manner. The C-N bond-forming step proceeds via a syn-amidopalladation pathway. The moderate kinetic isotope effects (intramolecular KIE = 3.56) suggest that electrophilic aromatic substitution occurs in the arylation step.