Flash vacuum pyrolysis of N-alkenylbenzotriazoles and N-alkenylisoxazolones
作者:Matthew Cox、Fariba Heidarizadeh、Rolf H. Prager
DOI:10.1071/ch00098
日期:——
The flashvacuumpyrolysis of 1-(2-ethoxycarbonylethenyl)benzotriazole hasbeen reinvestigated, and the processes leading to the formation of ethylindole-3-carboxylate and 2-ethoxyquinolin-4(1H)-oneelucidated. Similar pathways are followed in the flashvacuumpyrolysis of thecorresponding benzisoxazolone. SomeN-ethenylisoxazolones have been pyrolysed to formpyrroles, but rearrangement of the intermediate
Catalyst- and additive-free three-component construction of isoxazolidinyl nucleosides and azoles <i>via</i> 1,3-dipolar cycloaddition
作者:Xinyufei Yuan、Hang Gao、Xing Li、Qin Zhang、Wenwen Chen、Hui Wang
DOI:10.1039/d3nj05276a
日期:——
additive-free strategy could efficiently introduce the isoxazolidine skeleton into nucleoside analogues, oxazole molecules and indole derivatives to provide diverse classes of isoxazolidinyl pyrimidine nucleoside analogues, isoxazolidinyl purine nucleoside analogues, isoxazolidinyl imidazoles, isoxazolidinyl triazoles and isoxazolidinyl indole with moderate to good yields for most substrates.