Pearson, Emma; Kwan, Laurence; Turner, Craig; Jones, Garth; Willis, Anthony; Paddon-Row, Michael; Sherburn, Michael
High cis (i.e., endo) diastereoselectivities are witnessed in heat-promoted intramolecular Diels-Alder (IMDA) reactions of ethylene-tethered hexadienyl acrylates. The cis stereoselectivity is improved by promotion with Et 2AlCl. The first examples of Et2AlCl catalyzed intramolecular Diels-Alder reactions of ester-activated dienophiles are reported. In contrast, the corresponding benzo-tethered hexadienyl acrylates undergo moderately trans (i.e., exo) selective IMDA reactions. Very high trans...[Show more]
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