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Complementary Catalytic Strategies to Access α-Chiral Aldehydes

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Published in Chimia. 2013, vol. 67, no. 9, p. 658-662
Abstract The present article summarizes the development of two novel and complementary catalytic methods to access α-chiral aldehydes. A C 1-symmetric chiral (P,N) ligand with a structure derived from the ubiquitous binepine scaffold has been specifically designed for the Pd-catalyzed α-arylation of aldehydes to access indane derivatives with a well-defined quaternary stereocenter in high yields and excellent enantioselectivities. In addition, a dinuclear palladium hydride catalyst has been synthesized for the isomerization of terminal and trisubstituted epoxides into aldehydes and ketones respectively. Combined experimental and theoretical investigations pointed to an unprecedented 'epoxide-opening/hydride-transfer' sequence. The mechanism also features two distinct enantio-determining steps in the kinetic resolution of racemic epoxides.
Keywords AldehydesCatalysisCross-CouplingIsomerizationPalladium
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MAZET, Clement. Complementary Catalytic Strategies to Access α-Chiral Aldehydes. In: Chimia, 2013, vol. 67, n° 9, p. 658-662. https://archive-ouverte.unige.ch/unige:30036

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Deposited on : 2013-10-01

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