Two-Step One-Pot Synthesis of Benzoannulated Spiroacetals by Suzuki-Miyaura Coupling/Acid-Catalyzed Spiroacetalization

[摘要]：Substituted benzoannulated spiroacetals were prepared from (2-haloaryl)alkyl alcohols and dihydropyranyl or dihydrofuranyl pinacol boronates using a Suzuki-Miyaura coupling followed by an acid-catalyzed spirocyclization. Application of the reaction to a glycal boronate provides an approach to annulated spiroacetals in enantiopure form.

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