A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 31608-22-7, Name is 2-(4-Bromobutoxy)tetrahydro-2H-pyran, molecular formula is C9H17BrO2. In a Article£¬once mentioned of 31608-22-7, category: Tetrahydropyrans
Stereochemical Studies of Type-II Intramolecular Ene Reactions of delta,epsilon-Unsaturated Aldehydes
Intramolecular Lewis acid catalyzed ene reaction of aldehyde 3 gives the (E)-ene adduct 18 with 85-90percent selectivity.Intramolecular ene reactions of aldehydes 6, 10, and 13 proceed with 88-100percent selectivity for the isomer with an equatorial methyl group and an axial hydroxyl group.Intramolecular type-II ene reaction of allenic aldehyde 17 occurs either thermally or with Lewis acid catalysis to give a mixture of the expected ene adduct, bis exocyclic diene 26, and diene 27.
Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data.category: Tetrahydropyrans, If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 31608-22-7, in my other articles.
Reference£º
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics