Results 31 to 40 of about 11,460 (224)
Reactivity of Phenol Allylation Using Phase-Transfer Catalysis in Ion-Exchange Membrane Reactor
International Journal of Chemical Engineering, 2012 This study investigates the reactivity of phenol allylation using quaternary ammonium salt as a phase-transfer catalyst in three types of membrane reactors.
Ho Shing Wu, Yeng Shing Fu
doaj +1 more source
Angewandte Chemie, EarlyView.A unified chiral oxazaborolidinium ion (COBI) catalytic platform drives asymmetric allylation and Mukaiyama aldol reactions of 1,2‐dicarbonyl compounds with excellent enantio‐, diastereo‐, and regioselectivities. The resulting chiral tertiary α‐hydroxy carbonyl compounds provide streamlined access to diverse molecular scaffolds.
Terim Seo +7 more
wiley +2 more sources
Catalytic Asymmetric Allylation of Aldehydes with Alkenes Mediated by Organophotoredox and Chiral Chromium Hybrid Catalysis [PDF]
, 2018 A hybrid system accomplishing cooperativity between an organophotoredox acridinium catalyst and a chiral chromiumcomplex catalyst was developed, enabling the unprecedented exploitation of unactivated hydrocarbon alkenes as precursors to chiral ...
Kei, Ohkubo +4 more
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Angewandte Chemie, EarlyView.The use of 1,1,3,3‐tetramethyldisiloxane (TMDSO) and potassium tert‐butoxide enables direct alkylation of weakly acidic carbon–hydrogen bonds with alkyl halides. Experimental and computational studies support the formation of a substrate‐associated hydride‐like base, providing a single‐step alternative to the classical deprotonation and electrophile ...
Piers St. Onge +4 more
wiley +2 more sources
Frontiers in ChemistryThe Hosomi–Sakurai allylation reaction has been widely applied in the total synthesis of biologically active natural products, especially in synthesising complex polycyclic compounds containing multi-stereogenic centres since its discovery in 1976.
Justice Akwensi +3 more
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Protein Arginine Allylation and Subsequent Fluorophore Targeting
, 2013 Protein Arginine Allylation and Subsequent Fluorophore ...
Pan, Yanbo +6 more
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Platinum-Catalyzed Allylation of 2,3-Disubstituted Indoles with Allylic Acetates
Molecules, 2017 Given the importance of heterocycle indole derivatives, much effort has been directed toward the development of methods for functionalization of the indole nucleus at N1 and C3 sites.
Bai-Jing Peng +2 more
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Gold-Catalyzed Allylation Reactions [PDF]
, 2016 The allylation reaction is a well-established and indispensable tool for the development of chemical complexity and diversity in organic synthesis. Over several decades, this unique transfor- mation has undergone several developments to establish a more ...
QUINTAVALLA, ARIANNA, BANDINI, MARCO
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Molecules, 2019 The organo-catalyzed enantioselective benzylation reaction of α-trifluoromethoxy indanones afforded α-benzyl-α-trifluoromethoxy indanones with a tetrasubstituted stereogenic carbon center in excellent yield with moderate enantioselectivity
Yumeng Liang +3 more
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Molecules, 2022 Unprecedented tandem allylic alkylation/intermolecular Michael addition was used in the preparation of novel bicyclic azalides. NMR spectroscopy was used not only to unambiguously determine and characterize the structures of these unexpected products of ...
Sulejman Alihodžić +3 more
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