Results 211 to 220 of about 5,382 (243)

Asymmetric synthesis of chiral spiro bis(isoxazoline) and spiro (isoxazole–isoxazoline) ligands

Tetrahedron: Asymmetry, 2010
Abstract Asymmetric synthesis of novel chiral ligands, bis(isoxazoline) on a spiro[4.4]nonane scaffold and isoxazole–isoxazoline on a spiro[4.5]decane scaffold, has been achieved by utilizing an enantiomerically pure alcohol as the starting material.
Kazuhiro Takenaka, Toyohiro Nagano, Shinobu Takizawa, Hiroaki Sasai   +3 more
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2‐Isoxazoline derivatives. Part I. A base‐promoted fragmentation of 2‐isoxazolines

Journal of Heterocyclic Chemistry, 1968
AbstractThe action of bases on 3‐aryl (or alkyl)‐5‐acyl‐2‐isoxazolines has been shown to give rise to the corresponding aromatic (or aliphatic) nitriles and α‐diketones by cleavage of the O‐N and C3C4 bonds of the heterocyclic ring. This fragmentation reaction has been extended to other 2‐isoxazolines substituted in the 5‐position with electron ...
Giorgio Bianchi, Remo Gandolfi, Paolo Grünanger   +2 more
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Structure of a substituted isoxazoline

Acta Crystallographica Section C Crystal Structure Communications, 1987
L'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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Unusual transformations of 2-isoxazolines

Russian Chemical Reviews, 1997
The data on unusual transformations of 2-isoxazolines observed in both their preparation by traditional methods and various reactions, mostly with nucleophilic reagents, are considered systematically. Possible mechanisms of these reactions are discussed.
Elena V Koroleva, Fedor A Lakhvich
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Steroidal isoxazoles, isoxazolines and isoxazolidines

Journal of Heterocyclic Chemistry, 1998
AbstractThe present review considers new useful heterocyclosteroids which contain five‐membered heterocyclic systems, namely, isoxazoles, isoxazolines and isoxazolidines, condensed to the cyclopentanoperhy‐drophenanthrene skeleton, in different positions of the molecule, with changes in their physiological activity and the appearance of new interesting
Ch. Camoutsis, S. Nikolaropoulos
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Research Progress of Isoxazoline Insecticides

Current Organic Synthesis
Abstract: Isoxazoline insecticides constitute a class of compounds featuring the isoxazoline structure, which primarily exert their effects by inhibiting the γ-aminobutyric acid (GABA)- gated chloride channel in insects. GABA serves as the primary inhibitory neurotransmitter in invertebrates, with its receptor composed of subunits encoded by the Rdl ...
Hongjian Song, Yongqiang Li, Jingjing Zhang, Ziwen Wang, Yuxiu Liu, Qingmin Wang   +5 more
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ChemInform Abstract: ISOXAZOLINES FROM ARYLCYCLOPROPANES

Chemischer Informationsdienst, 1983
AbstractPhenylcyclopropan (Ia) und die cis‐ bzw. trans‐Diphenylcyclopropane (Ib) bzw. (Ic) werden durch NaNOQ/TFA in die Isoxazoline (II) übergeführt.
YU. S. SHABAROV, L. G. SAGINOVA, R. A. GAZZAEVA   +2 more
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ChemInform Abstract: ISOXAZOLINE AUS FLAVYLIUMSALZEN

Chemischer Informationsdienst. Organische Chemie, 1970
AbstractBeim kurzen Erwärmen des Flavyliumsalzes (I) oder des Chalkons (III) mit Hydroxylamin in Pyridin entsteht das Isoxazolin (II), das sich zu einem Diacetat (IV) acetylieren läßt und beim Erhitzen über seinen Schmelzpunkt zu dem farblosen (V) umgelagert wird.
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ISOXAZOLINE OXIDES III. TRIPHENYL-ISOXAZOLINE OXIDE

Journal of the American Chemical Society, 1924
E. P. Kohler, G. R. Barrett
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Isoxazolines from Benzyl Cyclopropanes

Chemistry of Heterocyclic Compounds, 2005
R. A. Gazzaeva, S. S. Mochalov, B. P. Archegov, N. S. Zefirov   +3 more
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