Synthesis of functionalized biaryls based on a Heck cross-coupling-[3+3] cyclization strategy.

[摘要]：6-Arylsalicylates were regioselectively prepd. by formal [3+3] cyclization of 1,3-bis(silyloxy)-1,3-butadienes with 1-aryl-3-ethoxyprop-2-en-1-ones which are available by Heck reaction of benzoyl chlorides with Et vinyl ether. In this context, the first [3+3] cyclizations of brominated substrates are reported.

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