Abstract
Abstract[10+2]‐Hetero‐higher‐order cycloaddition between tropone hydrazides (acting as 10π‐components) and 3‐alkylidene oxindoles (acting as 2π‐components) has been established. Under Brønsted base catalysis the reaction proceeded in a fully peri‐ and diastereoselective manner with the stereochemical outcome governed mainly by electronic interactions. Following such a strategy, a series of structurally diverse tetrahydropyridazines were prepared in 30–70% yields. Furthermore, the potential of the obtained cycloadducts has been confirmed in selected chemoselective transformations.
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