A Fe-Schiff-base complex on MCM-۴۱ as an efficient, reusable and chemoselectivenanocatalyst for oxidative coupling of thiols and oxidation of sulfides

The chemoselective oxidative coupling of thiols to disulfides and oxidation of sulfides tocorresponding sulfoxides are great procedures in organic chemistry, because disulfides and sulfoxides haveimportant role in biological application, enzymes activation, separation of radioactive or less common metalsand in medicinal chemistry. Therefore, we have investigated ۵-nitro-salicylaldehyde Schiff-base complex ofiron on MCM-۴۱ (Fe-۵NSA-MCM-۴۱) as a stable, efficient, environment friendly, reusable, andchemoselective catalyst for the synthesis of disulfide and sulfoxide derivatives using hydrogen peroxide (H۲O۲)as an environmentally friendly, inexpensive and available oxidant. This catalyst can recovered and reused forseveral times without significant loss in catalytic activity.

کلیدواژه ها:

mesoporous MCM-۴۱ ، heterogeneous catalyst ، iron ، disulfides ، sulfoxides ، chemoselectiveoxidation.