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Iminium-allenamine cascade catalysis: One-pot access to chiral 4Hchromenes by a highly enantioselective michael-michael sequence

Angewandte Chemie - International Edition (2010) 49(8) 1481-1484
DOI: 10.1002/anie.200906050
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Abstract

Chemical Equation Presented Taking the Michael-Michael: A cascade Michael-Michael reaction of aryl or alkyl alkynals, involving an unprecedented iminium - allenamine sequence, is efficiently catalyzed by a chiral diphenylprolinol TBDMS ether, and affords highly functionalized 4H-chromenes in high yields. TBDMS = tert-butyldimethylsilyl. © 2010 Wiley-VCH Verlag GmbH &. Co. KGaA,.

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Zhang, X., Zhang, S., & Wang, W. (2010). Iminium-allenamine cascade catalysis: One-pot access to chiral 4Hchromenes by a highly enantioselective michael-michael sequence. Angewandte Chemie - International Edition, 49(8), 1481–1484. https://doi.org/10.1002/anie.200906050

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