25856-11-5Relevant academic research and scientific papers
General Platform for the Conversion of Isoxazol-5-ones to 3,5-Disubstituted Isoxazoles via Nucleophilic Substitutions and Palladium Catalyzed Cross-Coupling Strategies
Fernandes, Alessandra A. G.,da Silva, Amanda F.,Okada, Celso Y.,Suzukawa, Vitor,Cormanich, Rodrigo A.,Jurberg, Igor D.
, p. 3022 - 3034 (2019/05/17)
A general platform for the conversion of isoxazol-5-ones to 3,5-disubstituted isoxazoles has been developed via a two-step strategy. The first step leads to the formation of 5-(pseudo)halogenated isoxazoles, while in the second, a variety of heteroalkyl-, heteroaryl-, alkyl-, alkenyl-, alkynyl- and aryl-chains can be installed via nucleophilic substitutions or palladium catalyzed cross-coupling reactions.
A convenient one-pot synthesis of 3,5-diarylisoxazoles via oxidative cyclisation using catalytic CuBr2 and oxone
Bhatt, Ashish,Singh, Rajesh K.,Kant, Ravi
supporting information, p. 1143 - 1147 (2019/03/26)
A facile one-pot synthesis of 3,5-diarylisoxazoles from α,β-unsaturated ketones and hydroxylamine hydrochloride is reported. The reaction is efficiently promoted by catalytic CuBr2 and Oxone to afford the desired products mostly in high yields
Trichloroisocyanuric acid mediated one-pot synthesis of 3,5-diarylisoxazoles from α,β-unsaturated ketones
Bhatt, Ashish,Singh, Rajesh K.,Kant, Ravi
, p. 1083 - 1091 (2019/04/01)
A facile one-pot synthesis of 3,5-diarylisoxazoles from α,β-unsaturated ketones and hydroxylamine hydrochloride is reported. The reaction is efficiently promoted by trichloroisocyanuric acid (TCCA) to afford the desired products, mostly in high yields and
TBAI-catalyzed intramolecular annulation of chalcone oximes toward isoxazoles
Abdukader, Ablimit,Sun, Yadong,Zhang, Zengpeng,Liu, Chenjiang
, p. 43 - 47 (2017/11/23)
A TBAI-catalyzed intramolecular annulation of chalcone oximes toward isoxazoles was developed, providing 3,5-diarylisoxazoles in good yields. Functional groups such as methoxy, ethyoxyl, chloro, bromo, fluoro and nitro were well tolerated in this reaction
Copper-catalyzed aerobic oxidative C-O bond formation for the synthesis of 3,5-disubstituted isoxazoles from enone oximes
Sun, Yadong,Abdukader, Ablimit,Zhang, Haiyan,Yang, Wanle,Liu, Chenjiang
, p. 55786 - 55789 (2017/12/26)
A direct access to 3,5-disubstituted isoxazoles has been accomplished through an intramolecular oxidative coupling reaction of enone oximes using a catalytic quantity of Cu(OAc)2. This method features an inexpensive metal catalyst, molecular ox
Cycloisomerization of acetylenic oximes and hydrazones under gold catalysis: Synthesis and cytotoxic evaluation of isoxazoles and pyrazoles
Jeyaveeran,Praveen, Chandrasekar,Arun,M Prince,Perumal
, p. 73 - 83 (2016/02/09)
The synthesis of substituted isoxazoles and pyrazoles through a general cycloisomerization methodology has been reported. The capability of gold(III) chloride to promote cycloisomerization of both α, β-acetylenic oximes and α, β-acetylenic hydrazones is t
Gold(III)-catalyzed synthesis of isoxazoles by cycloisomerization of α,β-acetylenic oximes
Praveen,Kalyanasundaram,Perumal
experimental part, p. 777 - 781 (2010/06/12)
Cycloisomerization of,-acetylenic oximes leading to substituted isoxazoles was achieved using AuCl3 as catalyst, under moderate reaction conditions. The reaction can be applied to various acetylenic oximes and gives good to excellent yields. Th
