Diversity-Oriented Synthesis of Functionalized Diaryl Sulfones by Regioselective [3+3] Cyclizations of 1,3-Bis(siloxy)buta-1,3-dienes with 2-(Arylsulfonyl)-3-ethoxy-2-en-1-ones: Scope and Limitations

[摘要]：The formal [3+3] cyclization of 1,3-bis(siloxy)buta-1,3-dienes with 2-(arylsulfonyl)-3-ethoxy-2-en-1-ones, readily available by reaction of beta-keto sulfones with triethyl orthoformate, allows the synthesis of a variety of functionalized diaryl sulfones with very good regioselectivity.

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