Abstract

AbstractThermal and high‐pressure [4+2] cycloadditions of buta‐1,3‐diene (3), cyclohexa‐1,3‐diene (5), and 2,3‐dimethylbuta‐1,3‐diene (6) to alkyl glyoxylates of type 2 ( Rn‐Bu, i‐Pr, t‐Bu), catalyzed by chromium complex (R,R)‐1, leading to the corresponding cycloadducts 4, 7 and 8 with relatively high enantioselectivity, are described.

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