Embedded Mn-porphyrins in PDMS and ORMOSILs as effective catalysts for cyclooctene epoxidation by H2O2 in supercritical carbon dioxide

被引：4

作者：

Campestrini, S

Donoli, A

Tonellato, U

机构：

[1] Univ Padua, Dipartimento Chim Organ, I-35131 Padua, Italy

[2] CNR, Ist Tecnol Membrane, I-35131 Padua, Italy

来源：

LETTERS IN ORGANIC CHEMISTRY | 2004年 / 1卷 / 02期

关键词：

carbon dioxide (supercritical); hexafluoroacetone; hydrogen peroxide; oxidation; porphyrin;

D O I：

10.2174/1570178043488329

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The heterogeneous oxidation of cyclooctene with H2O2 catalyzed by Mn-porphyrins embedded in polydimethylsiloxane (PDMS) and organically modified silicates (ORMOSILs), in the presence of hexafluoroacetone hydrate (HFAH) as cocatalyst. has been studied in supercritical carbon dioxide (scCO(2)) at 40degreesC and 20 MPa. Complete olefin conversion may be obtained with the formation of cyclooctene oxide as sole product. employing molar ratios of Mn-porphyrin/Substrate/H2O2 of 1:400:2000.

引用

页码：125 / 128

页数：4

共 17 条

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[2]

[Anonymous], 1999, CHEM SYNTHESIS USING

[3]

BANFI S, 1990, CHEM COMMUN, V24, P1794

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