On October 31, 2021, Veverkova, Eva; Molnosiova, Pavlina; Sebesta, Radovan published an article.Recommanded Product: 10472-24-9 The title of the article was Asymmetric Sequential Michael Addition and Cyclization Reactions of 2-(2-Nitrovinyl)phenols Catalyzed by Bifunctional Amino-Squaramides. And the article contained the following:
In this work, authors describe the Michael addition-cyclization reaction of 2-(2-nitrovinyl)phenol with two different reactive Michael donors, which lead to chiral benzopyran derivatives Specifically, bifunctional amino-squaramides with one or two chiral units in the side chains were evaluated as catalysts in these transformations. Furthermore, the utility of selected green solvents as reaction media for these processes was also tested. The best result was achieved with methyl-cyclopentanone-2-carboxylate as the Michael donor in Et (-)- L-lactate with quinine-based amino-squaramide as catalyst (yield 72%, dr >99:1, ee 99%). The experimental process involved the reaction of Methyl 2-cyclopentanonecarboxylate(cas: 10472-24-9).Recommanded Product: 10472-24-9
The Article related to chiral benzopyran preparation, nitrovinylphenol michael addition cyclization reaction, Heterocyclic Compounds (One Hetero Atom): Benzopyrans (Including Coumarins, Isocoumarins, Chromones, Benzopyrones, Dibenzopyrans, and Other Arenopyrans) and other aspects.Recommanded Product: 10472-24-9
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