Bis-vinyl selenides obtained via iron(iii) catalyzed addition of PhSeSePh to alkynes: synthesis and antinociceptive activity
作者:Glaubia Sartori、José S. S. Neto、Ana Paula Pesarico、Davi F. Back、Cristina W. Nogueira、Gilson Zeni
DOI:10.1039/c2ob27064a
日期:——
In the present study the synthesis and antinociceptive activity of bis-vinyl selenides, prepared via FeCl3 promoted reaction addition of diorganyl dichalcogenides to alkynes, is described. The pharmacological results demonstrated that bis-vinyl selenides 3a, 3d, 3h and 3t elicited antinociceptive effect in the mouse formalin test. The antinociceptive effects of bis-vinyl selenides are not sensitive to electronic effects of the substituents on the aromatic ring directly bonded to the selenium atom. Bis-vinyl selenides 3h and 3t were the most promising molecules for pharmacological purposes since these bis-vinyl selenides were effective in both phases of the formalin test and against edema. A single dose of bis-vinyl selenides 3a, 3d, 3h and 3t did not cause acute toxicity in mice.
Hexafluoroisopropanol-Promoted Disulfidation and Diselenation of Alkyne, Alkene, and Allene
作者:Chiyu Wei、Ying He、Jin Wang、Xiaohan Ye、Lukasz Wojtas、Xiaodong Shi
DOI:10.1021/acs.orglett.0c01834
日期:2020.7.17
in HFIP led to desired products in good to excellent yields (up to 96%). In contrast, other solvents, such as isopropanol and dichloroethane, could not promote the same reaction. This method revealed an example of HFIP-promoted transformations under the mild conditions, which greatly highlighted the unique reactivity of this specialsolvent.