CONTROL OF REGIOSELECTIVITY IN THE DIELS-ALDER REACTIONS OF ALKYL-SUBSTITUTED 1,4-BENZOQUINONES BY BETA-CYCLODEXTRIN AND ITS DERIVATIVES
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10.1039/c39950000971
Abstract
The Diets-Alder reactions of benzoquinones 1-3 with penta-1,3-diene 4 and isoprene 5 are studied in aqueous cyclodextrin solutions, where highly enhanced ortho (6, 8 and 10) and meta (13, 15) regioselectivities are achieved.