Abstract
AbstractEnantioselective access to polycyclic tetrahydroxanthone compounds was achieved through an organocatalyzed cascade reaction of alkene‐substituted 1,3‐diketones and alkenyloxindoles, using quinine‐derived squaramide as an efficient catalyst. It afforded a variety of optically active spirooxindole‐based tetrahydroxanthones with 18–94% yields, >19:1 dr, and 86–99% ee.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have