Results 81 to 90 of about 2,056,277 (235)
Chemistry – A European Journal, EarlyView.N‐heteroaromatic alkyl alcohols and amines are inherently unstable in acidic and/or basic solution due to an irreversible dehydrogenation that proceeds from a minority tautomer. In many cases, this reaction results in quantitative oxidation to the corresponding aldehyde, providing a simple, convenient, and green approach for preparing versatile ...
Omid Ghasemloo +4 more
wiley +1 more source
Enantioconvergent Deacylative Functionalization toward α‐Quaternary Nitriles
Angewandte Chemie, Volume 137, Issue 22, May 26, 2025.An enantioconvergent quaternary‐to‐quaternary synthesis of α‐chiral nitriles has been enabled. By replacing the acyl group with a variety of allyl, propargyl, and benzyl motifs, the functional group swap can convert easily available β‐ketonitriles to assorted quaternary stereocenters en route to bioactive molecules of broad interests.
Minghao Zhang, Zhongxing Huang
wiley +2 more sources
Chemistry–Methods, EarlyView.An efficient mechanochemical route for diphenyleneiodonium (DPI) salt synthesis is reported which offers a sustainable and solvent‐free alternative. The solid‐state reactivities of the reported DPI salts were also assessed with the help of morphology predictions and Hirshfeld surface analysis computations to understand the effect of crystal morphology,
Ipsha Shruti, Tejender S. Thakur
wiley +1 more source
Synthesis of Nitrogen Heterocycles by Hypervalent Iodine Mediated Cyclization [PDF]
, 2022 This thesis discusses the synthesis of 3-arylpyrrolidin-2-ones and the use of hypervalent iodine reagents in organic synthesis. With that being the case, the first chapter provides a brief introduction to nitrogen heterocycles and discusses methods ...
Ibrahim, Mohamed Raif
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Mechanochemical Approach for Metal‐Free Regioselective C5‐Sulfenylation of Imidazo[2,1‐b]Thiazoles
ChemSusChem, EarlyView.This study presents a mechanochemical approach for the metal‐free, regioselective C5‐sulfenylation of imidazo[2,1‐b]thiazoles using bis(trifluoroacetoxy)iodo]benzene and aryl methyl sulfides. The method, performed under solvent‐free ball‐milling conditions, provides an efficient, environmentally friendly alternative to conventional synthesis, achieving
Xinya Liu +6 more
wiley +1 more source
Are diazomethanes hypervalent molecules? Probably, but in an unexpected way!
, 2017 A recently published review on hypervalency[cite]10.1039/C5SC02076J[/cite] introduced a very simple way of quantifying the effect. One of the molecules which was suggested to be hypervalent using this method was diazomethane. Here I take a closer look.
openaire +1 more source
ChemInform Abstract: Organic Synthesis via Hypervalent, Hypercoordinate Molecules
ChemInform, 1990 This review describes synthetic applications of “hypervalent”, “hypercoordinate” molecules of the Group 14 Group 17 elements, in which there is an expansion of the valence octet of the central atom. Reactions of penta- and hexa-coordinate silicon compounds are categorized into five types, and examples are presented to demonstrate (1) the activation of ...
openaire +4 more sources
Attempts Towards Total synthesis of (±) Spirooliganone-A [PDF]
, 2015 The group has recently reported a novel protocol of oxidative dearomatization of napthols using phenyl selenium bromide (PhSeBr). The progress through this process towards the natural product synthesis especially the Spiroliganone system in the different
Bhattacharjya , Punarbasu
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Terpenes and Terpenoids: How can we use them?
European Journal of Organic Chemistry, EarlyView.The transition from petroleum‐based to renewable bio‐based chemicals has led to increased interest in terpenes and terpenoids. This overview highlights their chemistry, focusing on their reactivity and applications in polymerizations, total syntheses, pharmaceuticals, and bio‐based chemical conversions; promoting sustainable and green chemical ...
Jay Hanssens +3 more
wiley +1 more source
Theoretical Investigation of Halogen-Oxygen Bonding and Its Implications in Halogen Chemistry and Reactivity [PDF]
, 2007 Trends in the properties of normal valent and multivalent halogen-oxygen bonding are examined for the isomers of the halogen polyoxide families of the types (YXO2) and (YXO3), Y = Cl, Br, I, H, CH3, X = Cl, Br, I.
Kosmas, Agnie Mylona
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