Enantioselective synthesis of (3-indolyl)glycine derivatives via asymmetric Friedel–Crafts reaction between indoles and glyoxylate imines

Add time:08/27/2019    Source:sciencedirect.com

Chiral phosphoric acid-catalyzed enantioselective Friedel–Crafts reaction of indoles with ethyl glyoxylate imines was developed. With 10 mol % of the catalyst, the Friedel–Crafts reactions between a wide range of indoles and imines have been carried out, affording optically active (3-indolyl)glycine derivatives with excellent yields and high enantioselectivities (up to 87% ee).

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