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The conjugate addition reactions of trans-1,2-di(2-pyridyl)ethylene have been studied. This substrate reacts with organolithium nucleophiles, and the resulting anionic intermediates may be trapped by proton or various carbonyl-based electrophiles. It is suggested that the dipyridyl structure stabilizes the intermediate carbanion, allowing the Michael adduct to be captured by an added electrophile.The COVID-19 pandemic rapidly became a worldwide healthcare emergency affecting millions of people, with poor outcomes for patients with chron
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