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Domino cyclization: Alkylpalladium intermediates in an asymmetric Heck reaction were intercepted by a second alkene to give tricyclic products with high enantioselectivity (see scheme; Boc=tert-butoxycarbonyl). The method was applied to the asymmetric synthesis of a precursor of (−)-martinellic acid, a folk eye medicine in South America.
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Hu et al. (2013) studied this question.
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