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Indium triflate-catalysed Diels-Alder reactions of isochromenylium cations with enones
In the presence of indium triflate, o-alkynylbenzaldehydes form isochromenylium cations that react with enones such as chalcones and diarylidineacetones to give 1,2-dihydronaphthalenes in moderate to good yields. The reaction proceeds via a rare type of Diels-Alder reaction in which both the diene (isochromenylium cation) and the dienophile (enone) are electron deficient. The Royal Society of Chemistry 2013.
Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. Synthetic Route of 538-58-9, If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 538-58-9, in my other articles.
Reference£º
Synthesis and Crystal Structure of a Chiral?C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur¨Cnitrogen¨Coxygen ligand derived from aminothiourea and sodium?D-camphor-¦Â-sulfonate