Results 151 to 160 of about 1,834 (212)
General Alkene 1,2-syn-Cyano-Hydroxylation Procedure Via Electrochemical Activation of Isoxazoline Cycloadducts. [PDF]
J Am Chem SocWanderley TAS +4 more
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Journal of the Chemical Society C: Organic, 1971
The reaction paths leading from ethyl propiolate to isoxazolin-5-one (II) and isoxazolin-3-one (III) are discussed and shown to be pH-dependent. The chemical and tautomeric properties of compound (II) are consistent with the known behaviour of its derivatives.
DE SARLO, FRANCESCO +2 more
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The reaction paths leading from ethyl propiolate to isoxazolin-5-one (II) and isoxazolin-3-one (III) are discussed and shown to be pH-dependent. The chemical and tautomeric properties of compound (II) are consistent with the known behaviour of its derivatives.
DE SARLO, FRANCESCO +2 more
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Electrocatalytic Isoxazoline–Nanocarbon Metal Complexes
Journal of the American Chemical Society, 2021We report the synthesis of new carbon-nanomaterial-based metal chelates that enable effective electronic coupling to electrocatalytic transition metals. In particular, multiwalled carbon nanotubes (MWCNTs) and few-layered graphene (FLG) were covalently functionalized by a microwave-assisted cycloaddition with nitrile oxides to form metal-binding ...
Shao-Xiong Lennon Luo +3 more
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Insecticidal quinoline and isoquinoline isoxazolines
Bioorganic & Medicinal Chemistry Letters, 2014A series of quinoline and isoquinoline isoxazolines have been designed as pesticides for crop protection. Herein we reported the chemical synthesis, biological activity and structure-activity relationships. The isoquinoline derivative, such as 3i, is discovered as potent new class of isoxazoline insecticide which is competitive with commercial ...
Ming, Xu +5 more
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Structure of a norbornane‐fused pentacyclic isoxazoline [PDF]
Magnetic Resonance in Chemistry, 1990 AbstractThe steric structure of a pentacyclic adduct formed as a by‐product in a retro‐Diels‐Alder reaction was elucidated by 1H and 13C NMR spectroscopy, making use of double resonance and differential nuclear Overhauser effect measurements.
Sohár Pál +4 more
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Strong deshielding in aromatic isoxazolines
Magnetic Resonance in Chemistry, 2015AbstractVery strong proton deshielding was found in di/tri‐aromatic isoxazoline regioisomers prepared from acridin‐4‐yl dipolarophiles and stable benzonitrile oxides (BNO). Three alkenes, (acridin‐4‐yl)‐CHCH‐R (R = COOCH3, Ph, and CONH2), reacted with three BNO dipoles (2,4,6‐trimethoxy, 2,4,6‐trimethyl, 2,6‐dichloro) to give pairs of target ...
Lucia, Ungvarská Maľučká +3 more
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2005
The first part of the presented work deals with the enantioselective synthesis of isoxazolines. The synthetic approach involves the asymmetrically catalysed 1,3-dipolar cycloaddition of nitrones to acetylenes. Therefore electrondeficient mono- and bifunctionalysed as well as electronrich triplebond systems, in combination with electronrich and ...
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The first part of the presented work deals with the enantioselective synthesis of isoxazolines. The synthetic approach involves the asymmetrically catalysed 1,3-dipolar cycloaddition of nitrones to acetylenes. Therefore electrondeficient mono- and bifunctionalysed as well as electronrich triplebond systems, in combination with electronrich and ...
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Structure of a substituted isoxazoline
Acta Crystallographica Section C Crystal Structure Communications, 1987L'oxyde de cyano-3 tetramethyl-4,4,5,5 dihydro-4,5 isoxazole, C 8 H 12 N 2 O 2 , cristallise dans le systeme orthorhombique, groupe Pna2 1 et sa structure est affinee jusqu'a R=0,065.
C. George, R. Gilardi
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