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Lohrer, Bernhard; Bracher, Franz (2018): A short and divergent route to 2-alkenyl-4-quinolones. In: Tetrahedron Letters, Vol. 59, No. 40: pp. 3632-3635
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Abstract

2-alkenyl-4-quinolones were accessed via a high-yielding, three-step synthesis starting from 2-methyl-4-quinolones using a one-pot phosphorylation-olefination sequence as the key step and SEM as a convenient protecting group. This protocol tolerates various functional groups and gives the target olefins with complete (E)-selectivity.