14575-92-9Relevant articles and documents
A novel and efficient catalytic epoxidation of olefins and monoterpenes with microencapsulated Lewis base adducts of methyltrioxorhenium
Saladino, Raffaele,Andreoni, Alessia,Neri, Veronica,Crestini, Claudia
, p. 1069 - 1075 (2005)
The reactivity of methyltrioxorhenium in the epoxidation of olefins can be tuned by the presence of Lewis bases as ligands of the metal center. Unfortunately, a large excess of ligand is usually required to obtain high yields and selectivities mainly because of the fluxional behaviour that these compounds show in solution. We describe here the microencapsulation technique that can resolve this problem. Microencapsulated Lewis base adducts of methyltrioxorhenium with nitrogen containing ligands are highly efficient and selective catalysts for the epoxidation of several olefins and monoterpenes with hydrogen peroxide even in the case of the most sensitive substrates. These systems show the advantages of the ligand accelerated catalysis and the benefits of heterogeneous compounds. They can be easily recovered from the reaction mixture and used for more transformations.
Efficient Conversion of (1R,5R)-(+)-α-Pinene to (1S,5R)-(-)-Nopinone
Lavallee, Pierre,Bouthillier, Gilles
, p. 1362 - 1365 (1986)
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Aerobic epoxidation of natural terpenes: Study of the catalytic activity of new Ru-1,2,4-triazepine compelxes
Fdil, Na?ma,Ait Itto, My Youssef,Ait Ali, Mustapha,Karim, Abdellah,Daran, Jean-Claude
, p. 8769 - 8771 (2002)
Aerobic epoxidation of a range of natural terpenic olefines was carried out by using the triazepinic complexes [RuCl(TAZO)(p-cymene)] C1 and [Ru(TAZS)(p-cymene)]2 C2, recently prepared from [RuCl2(p-cymene)]2 and the corresponding 1,2,4-triazepines (HTAZO and H2TAZS). While, good similar stereoselectivity was observed for the two complexes, C1 was shown to be more effective and chemioselective.
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Boyle,P.H. et al.
, p. 2136 - 2142 (1971)
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Reactions of epoxides prepared from some monoterpenes with acetic anhydride on aluminosilicate catalysts
Tatarova,Korchagina,Volcho,Salakhutdinov,Barkhash
, p. 1076 - 1082 (2007/10/03)
Reactions of epoxides prepared from α-, β-pinenes and camphene with acetic anhydride on aluminosilicate catalysts (clay K-10, zeolite β) were investigated affording various products of skeleton rearrangements: mono- and diacetates with five- and six-membered rings, and also with norbornane and pinane cores.
