An efficient epoxidation of terminal aliphatic alkenes over heterogeneous catalysts: when solvent matters

An efficient epoxidation of terminal aliphatic alkenes over heterogeneous catalysts: when solvent matters

Catal. Sci. Technol., 2016, Advance Article
DOI: 10.1039/C5CY01639H, Paper

C. Palumbo, C. Tiozzo, N. Ravasio, R. Psaro, F. Carniato, C. Bisio, M. Guidotti
With a peculiar combination of catalyst/oxidant/solvent, it is possible to obtain good yields and excellent selectivities in the epoxidation of 1-octene.

see..............http://pubs.rsc.org/en/Content/ArticleLanding/2016/CY/C5CY01639H?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+rss%2Fcy+%28RSC+-+Catalysis+Science+%26+Technology+latest+articles%29#!divAbstract


The epoxidation of unfunctionalized terminal aliphatic alkenes over heterogeneous catalysts is still a challenging task. Due to the tuning of a peculiar catalyst/oxidant/solvent combination, it was possible to attain good alkene conversions (73%) and excellent selectivity values (>98%) in the desired terminal 1,2-epoxide. Over the titanium–silica catalyst and in the presence of tert-butylhydroperoxide, the use of α,α,α-trifluorotoluene as an uncommon non-toxic solvent was the key factor for a marked enhancement of selectivity. The titanium–silica catalyst was efficiently recycled and reused after a gentle rinsing with fresh solvent.

An efficient epoxidation of terminal aliphatic alkenes over heterogeneous catalysts: when solvent matters

C. Palumbo,^a   C. Tiozzo,^a   N. Ravasio,^a   R. Psaro,^a   F. Carniato,^b  C. Bisio^ab and   M. Guidotti*^a  

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Corresponding authors

^a

CNR-Istituto di Scienze e Tecnologie Molecolari, Via C. Golgi 19, 20133 Milano, Italy
E-mail: m.guidotti@istm.cnr.it

^b

Dipartimento di Scienze e Innovazione Tecnologica and Nano-SISTEMI Interdisciplinary Centre, Università del Piemonte Orientale “A. Avogadro”, Viale Teresa Michel 11, 15121 Alessandria, Italy

Catal. Sci. Technol., 2016, Advance Article

DOI: 10.1039/C5CY01639H

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