A new extension of the Birch-Cope sequence is described which allows the efficient enantioselective construction of highly functionalized, fused bicarbocyclic structures with an all-carbon quaternary stereo-center in two steps. The two-step sequence includes a cross metathesis between a terminal alkene and a polarized alkene followed by an intramolecular Rauhut-Currier reaction with a trialkylphosphine catalyst.
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Qiao, Yuan, Sanjeev Kumar, and William P. Malachowski. "Enantioselective synthesis of bicarbocyclic structures with an all-carbon quaternary stereocenter through sequential cross metathesis and intramolecular Rauhut–Currier reaction." Tetrahedron Letters 51, no. 19 (2010): 2636-2638.