Investigation of the catalytic activity of an electron-deficient vanadium(IV) tetraphenylporphyrin: A new, highly efficient and reusable catalyst for ring-opening of epoxides |
| |
Authors: | S. Abdolmanaf TaghaviMajid Moghadam Iraj Mohammadpoor-Baltork Shahram TangestaninejadValiollah Mirkhani Ahmad Reza KhosropourVenus Ahmadi |
| |
Affiliation: | Department of Chemistry, Catalysis Division, University of Isfahan, Isfahan 81746-73441, Iran |
| |
Abstract: | In this work, the catalytic activity of high-valent tetraphenylporphyrinatovanadium(IV) trifluoromethanesulfonate, [VIV(TPP)(OTf)2], in the nucleophilic ring-opening of epoxides is reported. This new V(IV) catalyst was used as an efficient catalyst for alcoholysis with primary (methanol, ethanol and n-propanol), secondary (iso-propanol) and tertiary alcohols (tert-butanol), hydrolysis and acetolysis of epoxides with acetic acid and also for the conversion of epoxides to 1,2-diacetates with acetic anhydride, conversion of epoxides to thiiranes with ammonium thiocyanate and thiourea, and for conversion of epoxides to acetonides with acetone. The catalyst was reused several times without loss of its activity. |
| |
Keywords: | Homogeneous catalyst Epoxide Ring-opening Vanadium porphyrin Electron-deficient |
本文献已被 ScienceDirect 等数据库收录! |
|