Herein, we report the accomplishment of Rh2(II)-catalyzed intramolecular amination of aryl azide-tethered 1,3-dicarbonyls to access privileged heterocyclic scaffolds with exclusive diastereoselectivity under simple reaction conditions. This method also allows an unconventional direct alpha-amination at electron-deficient C-(sp3)-H bonds of aryl azide-tethered 1,3-diketones to afford fused 2-azatricyclo-[4.4.0.02,8]-decanones and 2,2-disubstituted indolines, which are present in several biologically active alkaloids. Kinetic isotope experiments revealed that the nucleophilic addition of enol pi-bonds on the transient electrophilic rhodium-nitrenoid intermediate enables C-N bond formation.
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Indian Inst Chem Technol, Div Organ Chem, Hyderabad 500007, Andhra Pradesh, IndiaIndian Inst Chem Technol, Div Organ Chem, Hyderabad 500007, Andhra Pradesh, India
Yadav, JS
Reddy, BVS
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Indian Inst Chem Technol, Div Organ Chem, Hyderabad 500007, Andhra Pradesh, IndiaIndian Inst Chem Technol, Div Organ Chem, Hyderabad 500007, Andhra Pradesh, India
Reddy, BVS
Venugopal, C
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Indian Inst Chem Technol, Div Organ Chem, Hyderabad 500007, Andhra Pradesh, IndiaIndian Inst Chem Technol, Div Organ Chem, Hyderabad 500007, Andhra Pradesh, India
Venugopal, C
Padmavani, B
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Indian Inst Chem Technol, Div Organ Chem, Hyderabad 500007, Andhra Pradesh, IndiaIndian Inst Chem Technol, Div Organ Chem, Hyderabad 500007, Andhra Pradesh, India