Regioselective [5,5]‐Sigmatropic Rearrangement Reactions of Aryl Hydrazides. [PDF]
ChemInform, 2006 AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Hong‐Min Kang +4 more
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Sequential Diels–Alder/[3,3]-sigmatropic rearrangement reactions of β-nitrostyrene with 3-methyl-1,3-pentadiene [PDF]
Beilstein Journal of Organic Chemistry, 2013 The tin(IV)-catalyzed reaction of β-nitrostyrene with (E)-3-methyl-1,3-pentadiene in toluene afforded two major nitronic ester cycloadducts in 27% and 29% yield that arise from the reaction at the less substituted diene double bond.
Peter A. Wade +3 more
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Spin in a Closed‐Shell Organic Molecule on a Metal Substrate Generated by a Sigmatropic Reaction [PDF]
Angewandte Chemie International Edition, 2018 AbstractInert metal surfaces present more chances of hosting organic intact radicals than other substrates, but large amounts of delocalized electronic states favor charge transfer and thus spin quenching. Lowering the molecule–substrate interaction is a usual strategy to stabilize radicals on surfaces.
Marie‐Laure Bocquet +3 more
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Rh(II) catalyzed efficient sigmatropic rearrangement reaction of pyridotriazoles and sulfides
Green Synthesis and Catalysis, 2023 The [2,3]- and [1,2]-sigmatropic rearrangement reactions between pyridotriazoles and sulfides catalyzed by rhodium(II) were investigated. The utilization of pyridotriazoles as the carbene precursors in this kind of reaction efficiently constructed the C(sp3)-S and C(sp3)-Se bond with broad substrate scope and great functional group tolerance.
Yuting Chen +6 more
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An MO Calculation of the Reaction Path of a Symmetry-Disfavored 1,3-Sigmatropic Rearrangement [PDF]
Bulletin of the Chemical Society of Japan, 1977 Abstract The path of suprafacial 1,3-sigmatropic rearrangement is studied with the INDO-CI and INDO LMO methods. The methyl migration has been found to be represented by successive 1,2-shifts with a biradicaloid transition state. The interaction between the singly occupied MO’s of allyl and methyl fragments is suggested to be responsible
Tsutomu Minato +3 more
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Reactions of vinyl selenoxides and ketenes via 3,3-sigmatropic rearrangement [PDF]
Tetrahedron Letters, 1987 AbstractThe vinyl selenoxides (I) react with dichloroketene (IIa) or chlorocyanoketene (IIb), generated by thermolysis of the azide (IV), yielding the phenylselenenyl γ‐lactones (III) or (V).
Joseph P. Marino, Min Woo Kim
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Organic & Biomolecular Chemistry, 2023 A simple and fully operational process of [2,3]-sigmatropic rearrangement that does not involve the use of carbenes or the associated hazardous and sensitive reagents in an open flask reaction at room temperature.
M. García-Castro +2 more
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Synthesis of Substituted 1‐Thiocyanatobutadienes and Their Application in a Diels—Alder/[3,3] Sigmatropic Rearrangement Tandem Reaction. [PDF]
, 2005 Summary.: The retrosynthetic analysis of Ibogamine, a natural psychotropic alkaloid with exceptional anti-addictive properties found in both enantiomeric forms, requires an efficient access to a racemic cyclohexene.
Sébastien Lanaspeze, Reinhard Neier
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Theoretical investigation of Banert cascade reaction [PDF]
Royal Society Open Science, 2018 Computational inside of Banert cascade reaction for triazole formation is studied with B3LYP/6-31G(d,p) level of theory. The reaction proceeds mainly by SN2 initial chloride displacement rather than SN2′-type attack. Furthermore, according to the rate of
S. Bhattacharyya, K. Hatua
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Copper-Catalyzed Synthesis of Axially Chiral Biaryls with Diaryliodonium Salts as Arylation Reagents
Molecules, 2021 NOBIN and BINAM derivatives harboring biaryl frameworks are recognized as a class of important atropisomers with versatile applications. Here, we present an efficient synthetic route to access such compounds through copper-catalyzed domino arylation of N-
Ji-Wei Zhang +3 more
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