Nafion-H-catalyzed Mukaiyama aldol condensations and hetero Diels–Alder reactions using aldehydes and imines. Part 15: General synthetic methods
作者:R Kumareswaran、B.Gopal Reddy、Y.D Vankar
DOI:10.1016/s0040-4039(01)01592-1
日期:2001.10
Nafion-H catalyzes the Mukaiyama aldol condensation between aromatic aldehydes and the Danishefsky diene whereas the corresponding imines directly undergo hetero Diels-Alder cyclization to form 2,3-dihydro-gamma -pyridones. Some chiral acetal derived aldehydes were round to undergo Mukaiyama aldol condensation in the presence of Lewis acids but not with Nafion-H. (C) 2001 Elsevier Science Ltd. All rights reserved.
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