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Free keywords:
asymmetric synthesis; C-C coupling; chiral solvents; ionic liquids; organocatalysis
Abstract:
Let's twist again! The first highly enantioselective asymmetric reaction in which a chiral reaction medium is the sole source of chirality is presented. The aza‐Baylis–Hillman reaction in an ionic liquid with a chiral anion, whose design is based on mechanistic insights, gave products with up to 84 % ee.