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Bücher Englische Bücher Wissen & Bildung Naturwissenschaft, Medizin, Informatik, Technik Chemie Organische Chemie Development of Novel Hydrogen-Bond Donor Catalysts
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Development of Novel Hydrogen-Bond Donor Catalysts
Tsubasa Inokuma (Gebundene Ausgabe, Englisch)
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Beschreibung
This work describes novel, effective hydrogen-bond (HB) donor catalysts based on a known bifunctional tertiary amine-thiourea, a privileged structure, which has been proven to be one of the most widely used organocatalysts. These HB donor catalysts derived from quinazoline and benzothiadiazine were initially synthesized as novel HB donors with their HB-donating abilities being measured by… analytical methods. They were found to be effective for a variety of asymmetric transformations including Michael reactions of a, b-unsaturated imides and hydrazination reactions of 1,3-dicarbonyl compounds. Thiourea catalysts that have an additional functional group are also described. Specifically, thioureas that bear a hydroxyl group were synthesized and subsequently used as novel bifunctional organocatalysts for catalytic, asymmetric Petasis-type reactions involving organoboronic acids as nucleophiles. These addition reactions were difficult to achieve using existing organocatalysts. One of the developed catalytic methods can be applied to the synthesis of biologically interesting peptide-derived compounds possessing unnatural vinyl glycine moieties. These findings introduce new criteria required for the development of organocatalysts for asymmetric reactions, thus making a significant contribution to the field of organocatalysis. Dieses Produkt haben wir gerade leider nicht auf Lager.
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Technische Daten
Erscheinungsdatum
18.01.2013
Sprache
Englisch
EAN
9784431542308
Herausgeber
Springer Tokyo
Serien- oder Bandtitel
Springer Theses
Sonderedition
Nein
Autor
Tsubasa Inokuma
Seitenanzahl
107
Einbandart
Gebundene Ausgabe
Schlagwörter
Asymmetric Organocatalyst, Bifunctional Thiourea, HB Donor Catalysts, Hydrazination, Hydrogen Bond, Michael Reaction, Organoboronic Acid, Petasis Reaction
Thema-Inhalt
PNN - Organische Chemie
PNB - Medizinische Chemie, Pharmazeutische Chemie
PNRD - Katalyse
Höhe
235 mm
Breite
15.5 cm
Hersteller: Springer Nature Customer Service Center GmbH, Europaplatz 3, Heidelberg, Deutschland, 69115, ProductSafety@springernature.com
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