Jiaxing Bai, Nengni Xu, Hui Wang, Xinjun Luan,
A palladium-catalyzed [2+2+1] annulation of alkynes and hydroxylamines has been developed for the rapid construction of fully substituted pyrroles. This transformation involves sequential nucleophilic-addition of hydroxylamine to alkyne, alkyne migratory insertion, and synergistic demetallization cyclization, which provides a redox-neutral annulation approach to pyrrole derivatives. Moreover, the strategy enabled alteration of the photophysical properties of pyrrole products by varying the aryl substituents, ...
Tópico(s): Synthesis and Characterization of Pyrroles
2022 - American Chemical Society | Organic Letters
... aises qui, en adoptant des pratiques hétérodoxes à l'étranger, ont permis de remettre ...
Tópico(s): Agriculture and Rural Development Research
2007 - | Sociétés contemporaines
Tópico(s): Chemical Reactions and Isotopes
1995 - Elsevier BV | Toxicology Letters