277-86-1Relevant academic research and scientific papers
Selective Heterogeneous Epoxidations with Cp-Titanium Chloride Derived Microporous Silica Glasses
Thorimbert, Serge,Klein, Stephan,Maier, Wilhelm F.
, p. 3787 - 3792 (1995)
A new heterogeneous epoxidation catalyst is prepared by the copolycondensation of cyclopentadienyl titanium chlorides with tetraethoxysilane by a modified sol-gel procedure.Epoxidations of non-activated olefins in the presence of these new heterogeneous catalysts are described.
Transition-Metal Phthalocyanins as Catalysts for Alkene Epoxidation
Larsen, Erik,Joergensen, Karl Anker
, p. 259 - 263 (2007/10/02)
The epoxidation of alkenes catalyzed by transition-metal phthalocyanins has been studied.All the transition-metal phthalocyanins studied have catalytic properties: the manganese and iron phthalocyanins are most effective when iodosylbenzene is the oxygen donor, whereas cobalt and nickel phthalocyanins are best under phase-transfer catalysis conditions with sodium hypochlorite as the oxygen donor.The epoxidation of cis-alkenes leads to a mixture of cis- and trans-epoxides; the presence of 2,6-di-tert-butyl-p-cresol in the iron(II) phthalocyanin-catalysed reaction leads to a highly stereospecific epoxidation of cis-alkenes.The results are discussed in relation to other transition-metal-catalyzed epoxidations.
