Results 81 to 90 of about 1,834 (212)
Catalytic Asymmetric Synthesis of Isoxazolines from Silyl Nitronates
, 2016 1,3-Dipolar cycloadditions of triisopropylsilyl nitronates and 2-alkylacroleins produced isoxazolines bearing a chiral quaternary center in high yields and enantioselectivities with the aid of a chiral oxazaborolidine catalyst.
Xiaoyu Han (550622) +3 more
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An unexpected transformation by reduction of isoxazolines
Comptes Rendus. Chimie, 2012 Aromatic nitrile oxides undergo regio- and stereo-specific 1,3-dipolar cycloaddition reactions with racemic 5-hydroxy-4-methyl-1,5-dihydropyrrol-2-one derivatives 1 . In each case, a single product 3 results from an anti
Naoufel Ben Hamadi, Moncef Msaddek
openaire +1 more source
Visible-Light-Mediated Three-Component Strategy for the Synthesis of Isoxazolines and Isoxazoles
Isoxazolines and isoxazoles commonly serve as core structures of many therapeutic agents and natural products. However, the metal-free and catalysis-free strategy for the synthesis of these privileged motifs at room temperature remains a challenging task.
Shao-Fei Ni (3756157) +9 more
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Novel delta(2)-isoxazolines as group II phospholipase A(2) inhibitors
, 2004 The synthesized imidazolyl substituted delta(2)-isoxazolines were subjected to Phospholipase A(2) (PLA(2)) enzyme inhibitory activity against snake venom source and their structure-activity relationship with respect to different groups attached to this ...
Basappa Basappa +13 more
core +1 more source
, 2012 The first organocatalytic enantioselective protocol has been developed for the dipolar [3+2]?cycloaddition between acetylenic aldehydes and nitrones through an iminium activation pathway.
Wang, Chao +3 more
core
, 2012 Some novel long-chain nitrones, isoxazolines, and (1H-benzo[d]-imidazol-2-ylthio) derivatives were synthesized. Nitrones, N-{4-[2-(tetradecylthio) acetoxy] benzylidene} aniline oxide, and N-[4-(12-oxo-2,5,8,11-tetraoxadocosan-22-yloxy)benzylidene]aniline
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Visible-Light-Mediated Generation of Nitrile Oxides for the Photoredox Synthesis of Isoxazolines and Isoxazoles [PDF]
, 2016 Visible-light photoredox catalysis enables the synthesis ofbiologically relevant isoxazolines and isoxazoles fromhydroxyimino acids. The process shows broad functional groupcompatibility and mechanisitic and computational studies supporta visible-light ...
Sheikh, Nadeem S +5 more
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Electrochemically enabled synthesis of substituted isoxazolines
Previously held under moratorium in Chemistry Department (GSK) from 17th June 2020 until 22nd November 2022.The confidentiality statement on each page of this thesis DOES NOT applySynthetic electroorganic chemistry has recently become an attractive ...
Holman, Samuel David Lee
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Aryl nitrile oxide cycloaddition reactions in the presence of pinacol boronic acid ester
Beilstein Journal of Organic Chemistry, 2012 An aryl substrate with dual functionality consisting of a nitrile oxide and a pinacolyl boronate ester was prepared by mild hypervalent iodine oxidation (diacetoxyiodobenzene) of the corresponding aldoxime, without decomposition of the boronate ...
Sarah L. Harding +2 more
doaj +1 more source
مجلة بغداد للعلوم, 2016 In this paper some chalcones (C1-C8) are prepared based on the reaction of one mole of substituted acetophenone with one mole of substituted benzaldehydes in the presence of (40%) sodium hydroxide as a base.
Baghdad Science Journal
doaj +1 more source