Results 111 to 120 of about 14,648 (255)
Benzo[d]oxazoles from Anilides by N-Deprotonation–O-SNAr Cyclization
MoleculesA synthesis of benzo[d]oxazoles by an N-deprotonation–O-SNAr cyclization sequence from anilide precursors is reported. Anilides derived from 2-fluorobenzaldehydes, activated toward SNAr ring closure by C5 electron-withdrawing groups, were prepared and ...
Nash E. Nevels +2 more
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Ueber Oxazole und Derivate [PDF]
Berichte der deutschen chemischen Gesellschaft, 1888 n ...
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Beilstein Journal of Organic Chemistry, 2013 Polystyrene sulfonate polymer brushes, grown on the interior of the microchannels in a microreactor, have been used for the anchoring of gallium as a Lewis acid catalyst.
Rajesh Munirathinam +7 more
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Synthesis of 2,6-bis-(oxazolyl)pyridine ligands for luminescent Ln(III) complexes [PDF]
, 2012 Submitted to the European Journal of Organic ChemistryNew bis-(oxazolyl)pyridine ligands for Ln(III) ions were prepared using a expeditious methodology from threonine and dipicolinic acid chloride.
Castanheira, Elisabete M. S. +4 more
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Molecules, 2018 Elephant dung coffee (Black Ivory Coffee) is a unique Thai coffee produced from Arabica coffee cherries consumed by Asian elephants and collected from their feces.
Poowadol Thammarat +4 more
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Mass spectrometry of substituuted-amino five membered heterocycles. [PDF]
, 2018 The electron impact mass spectral behaviour of 2-[acyl(alkyl)amino]oxazoles has been investigated. When the acyl group is aliphatic, the major fragment ions arise either from cleavage of the substituent or fragmentation of the nucleus with simultaneous ...
Mallen, David Nigel Brinsley.
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Proceedings, 2019 An efficient Microwave (MW)-assisted synthesis of eight new 6-nitrilmethyl-pyrrolo[3,4-b]pyridin-5-ones via a domino process: aza Diels–Alder/N-acylation/aromatization (dehydration–decarboxylation) from their corresponding 2-aminonitrile ...
Manuel A. Rentería-Gómez +4 more
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One-Pot Synthesis of Polysubstituted Oxazoles by the Catalysis of FeCl3 under MW and Synthesis of Leaf Alcohol and 2-Deoxy-L-glucose [PDF]
, 2010 一、含噁唑环类化合物广泛存在于天然产物和药物中，其合成方法备受关注。我们成功地发展了一种快速而有效的三氯化铁催化的微波条件下由炔丙酯与酰胺合成多取代噁唑的方法（见图1）。该方法中我们用单一的三氯化铁催化剂催化了两个不同的反应，即先催化取代反应生成取代产物，中间体无需分离，再催化环化异构反应“一锅”内生成目标产物多取代噁唑，并且应用了“绿色”的热源，反应时间短，操作简便，产率较令人满意，且底物应用范围较广。因而这一方法不失为合成多取代噁唑的方法的补充 ...
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Synthesis and Cytoprotective Characterization of 8-Hydroxyquinoline Betti Products
Molecules, 2018 The 8-hydroxyquinoline pharmacophore scaffold has been shown to possess a range of activities as metal chelation, enzyme inhibition, cytotoxicity, and cytoprotection.
Iván Kanizsai +6 more
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