Alcohols Q 0230Dinuclear Zn-Catalyzed Asymmetric Alkynylation of Unsaturated Aldehydes.-The practical and general method uses a proline-derived dinuclear zinc catalyst system. -(TROST*, B. M.; WEISS, A. H.; VAN WANGELIN, A. J.; J. Am. Chem. Soc. 128 (2006) 1, 8-9; Dep. Chem., Stanford Univ., Stanford, CA 94305, USA; Eng.) -Bartels 21-083
Substituted 1-acylaminocyclohex-2-enes can be prepared in good to excellent yields by multicomponent reactions (MCR) utilizing ubiquitously available aldehydes, amides, and dienophiles (AAD reaction). This novel one-pot reaction involves 1-acylaminobuta-1,3-dienes as key intermediates, which undergo subsequent Diels-Alder reactions.
Olefin-Assisted Iron-Catalyzed Alkylation of Aryl Chlorides. -The reaction tolerates a wide range of functional groups and exhibits high chemoselectivity. No competitive polymerization or reduction is observed. -(GUELAK, S.; GIESHOFF, T. N.; JACOBI VAN WANGELIN*, A.; Adv. Synth. Catal. 355 (2013) 11-12, 2197-2202, http://dx.doi.org/10.1002/adsc.201300095 ; Inst. Org. Chem., Univ. Regensburg, D-93053 Regensburg, Germany; Eng.) -Y. Steudel 04-036
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