Results 61 to 70 of about 6,809 (215)
Frontiers in Chemistry, 2022 An unprecedented inactivation process of the indanol-derived NHC catalysts bearing N-C6F5 groups is reported. An unexpected multi-cyclic complex product is obtained from the 3-component reaction with the 1-methylcyclopropyl-carbaldehyde, the 2,2,2 ...
Yanling Chen +3 more
doaj +1 more source
Synthesis of Polyurethanes Using Organocatalysis: A Perspective [PDF]
, 2015 Organocatalysis has become an invaluable tool for polymer synthesis, and its utility has been demonstrated in ring-opening, anionic, zwitterionic, and group-transfer polymerizations.
Haritz Sardon +11 more
core +1 more source
Diastereo- and Enantioselective Direct Aldol Reactions in Aqueous Medium: a New Highly Efficient Proline-Sugar Chimeric Catalyst [PDF]
, 2011 Synthesis and successful applications in terms of chemical yields and diastereo-/enantiomeric ratios of a new catalyst in the DAA of cyclohexanone and acetone to variously substituted benzaldehydes have been ...
CAPUTO, ROMUALDO +3 more
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(2R,4R)-2-Hydroxy-4-(2-methoxyphenyl)bicyclo[3.3.1]nonan-9-one
Acta Crystallographica Section E, 2009 The title compound, C16H20O3, contains a bicyclic ring system with two chiral centers. The crystal structure is stabilized by intermolecular O—H...O hydrogen bonds.
Shuping Luo +4 more
doaj +1 more source
Spotting trends in organocatalysis for the next decade
Nature Communications, 2020 After two decades of steady growing, symbiotic merger of organocatalysis with emerging electrochemical and photochemical tools are envisioned as hot topics in the coming decade.
José M. Lassaletta
doaj +1 more source
Chemistry – A European Journal, EarlyView.Aminocatalytically generated isobenzofulvenes and 3‐oxidopyridinium betaines act as ambiphilic reaction partners in orbital‐symmetry‐allowed [10+4] cycloadditions or formally symmetry‐forbidden concerted thermal [10+6] cycloadditions. The reaction furnishes three cycloadducts: one [10+4] cycloadduct and two regioisomeric [10+6] cycloadducts.
Jonas Faghtmann +7 more
wiley +1 more source
2.8 Recent Advances in N-Heterocyclic Carbene Organocatalysis [PDF]
, 2018 In recent years, organocatalysis has seen a rapid rise in popularity and this has led to a subsequent increase in the research output of the area, with organocatalysis by N-heterocyclic carbenes (NHCs) playing a significant role.
A. Davies, A. D. Smith
core +1 more source
Flipping the Card With Enantiodivergent Organocatalysis
Chemistry – A European Journal, EarlyView.This minireview elaborates on recent organocatalytic strategies for achieving enantiodivergence—the ability to access both product enantiomers using a single chiral catalyst. It highlights how achiral stimuli, such as solvent polarity and chemical additives, along with minimal catalyst modifications, trigger stereochemical inversions in reactions ...
Debora Iapadre +3 more
wiley +1 more source
Enantioselective homogeneous catalysts for the synthesis of fluorinated organic compounds [PDF]
, 2012 This thesis is divided into three main results chapters that reflect the path my research took. In the first results chapter, the first organocatalyst for the carbonyl-ene reaction was discovered and found to give high conversion using 1,3-bis(3,5-bis ...
Jones, Charlotte E. S.
core
Organocatalytic Formal (3+2+1)‐Cycloaddition of Allenoates, Michael Acceptors, and Carbaldehydes
Chemistry – A European Journal, EarlyView.The use of secondary amine Lewis base organocatalysts allows for the unprecedented activation of allenoates for formal (3+2+1)‐cycloadditions with Michael acceptors and aromatic carbaldehydes. ABSTRACT Employing secondary amines as covalently interacting Lewis basic organocatalysts allows for the activation of electron‐deficient allenes (allenoates ...
David Naderer +5 more
wiley +1 more source