Dimeric Mn (III)-tetraarylporphyrins as catalysts for H 2 O 2-promoted olefin epoxidation.
S Banfi, F Montanari, G Pozzi, S Quici
Index: Banfi, Stefano; Montanari, Fernando; Pozzi, Gianluca; Quici, Silvio Tetrahedron, 1994 , vol. 50, # 30 p. 9025 - 9036
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Citation Number: 19
Abstract
The first example of dimeric Mn (III)-tetraarylporphyrins able to catalyze olefin epoxidation is reported. In the presence of one equivalent of lipophilic bidentate ligand 3 the efficiency of some of these catalysts is among the highest reported to now in 30% H2O2-promoted epoxidation (up to 1500 overall catalytic cycles). Slightly better results were obtained replacing 3 with two equivalents of N-hexylimidazole 10.
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