Investigation of the catalytic activity of an electron-deficient vanadium(IV) tetraphenylporphyrin: A new, highly efficient and reusable catalyst for ring-opening of epoxides

被引：30

作者：

Taghavi, S. Abdolmanaf ^{[1
]}

Moghadam, Majid ^{[1
]}

Mohammadpoor-Baltork, Iraj ^{[1
]}

Tangestaninejad, Shahram ^{[1
]}

Mirkhani, Valiollah ^{[1
]}

Khosropour, Ahmad Reza ^{[1
]}

Ahmadi, Venus ^{[1
]}

机构：

[1] Univ Isfahan, Catalysis Div, Dept Chem, Esfahan 8174673441, Iran

来源：

POLYHEDRON | 2011年 / 30卷 / 13期

关键词：

Homogeneous catalyst; Epoxide; Ring-opening; Vanadium porphyrin; Electron-deficient; HIGH-VALENT METALLOPORPHYRIN; ALLYL VINYL ETHERS; ACETIC-ANHYDRIDE; TIN(IV) PORPHYRIN; CONVERSION; ALCOHOLS; THIIRANES; MILD; REARRANGEMENT; 1,3-DIOXOLANES;

D O I：

10.1016/j.poly.2011.06.008

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

In this work, the catalytic activity of high-valent tetraphenylporphyrinatovanadium(IV) trifluoromethanesulfonate, [V-IV(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. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：2244 / 2252

页数：9

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