Angewandte Chemie - International Edition p. 5204 - 5206 (2006)
Update date:2022-08-05
Topics:
Hilt, Gerhard
Janikowski, Judith
Hess, Wilfried
(Chemical Equation Presented) Overcoming the ortho/para rule? The regioselectivity of Diels-Alder reactions with neutral electron demand between 1,3-dienes with alkynes can be controlled by simple cobalt diimine complexes so that the meta-substituted cycloadducts are generated in good yields and excellent regioselectivity (see scheme; DDQ=2,3-dichloro-5,6-dicyano-1,4- benzoquinone).
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