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Dinuclear zinc-catalyzed desymmetric intramolecular aldolization: an enantioselective construction of spiro[cyclohexanone-oxindole] derivatives†
Ya-Fei Zhang,Shao-Jie Yin,Min Zhao,Jun-Qi Zhang,Hai-Yan Li,Xing-Wang Wang
RSC Advances Pub Date : 03/10/2016 00:00:00 , DOI:10.1039/C6RA02296K
Abstract

Based on oxindole-derived diketones as the substrates, asymmetric desymmetrizing intramolecular aldol or aldol condensation reactions are reported, which are catalyzed by a Trost bis-ProPhenol dinuclear zinc complex. The corresponding spiro[cyclohexanone-oxindole] derivatives were obtained in good yields with moderate to good enantioselectivities.

Graphical abstract: Dinuclear zinc-catalyzed desymmetric intramolecular aldolization: an enantioselective construction of spiro[cyclohexanone-oxindole] derivatives
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