Journal
CHEMICAL COMMUNICATIONS
Volume 51, Issue 89, Pages 16076-16079Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5cc06353a
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Funding
- National Natural Science Foundation of China [21290182, 21432006, 21172151]
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A highly enantioselective dearomative cascade reaction between 2-isocyanoethylindoles and 3-alkenyl-oxindoles was realized using a chiral N, N'-dioxide-Mg(II) complex catalyst. This reaction provides a straightforward access to polycyclic 3-spirooxindoles bearing cyclopenta[b] indole units with four contiguous stereocenters in excellent yields and moderate to good stereoselectivities via a Michael/Friedel-Crafts/Mannich cascade.
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