Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, get their minds active, and encourage them to do something that doesn’t involve a screen. 21436-03-3, C6H14N2. A document type is Article, introducing its new discovery., SDS of cas: 21436-03-3
(E)1-acetyl-[2-(3-methyl-2-butenyloxy)benzylidene]indolin-2-one (1) gives competition between the intramolecular Hetero Diels-Alder (HDA) (thermal conditions) and the intramolecular ene reaction (IER) (magnesium perchlorate – MP – catalyzed conditions). Several complexes derived from MP and chiral bis-oxazolines were found to be excellent chemo- and enantioselective catalysts with a different degree of selectivity depending on the substituents on the oxazoline ring. The most chemoselective oxazolinic ligand forced the reaction to give a ratio of [HDA]:[[IER] products 5:95. The trans-(4,5-diphenyloxazoline)-MP complex is the best enantioselective catalyst and the product of the IER of 1 can be prepared in 75% yield and 88% e.e..
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