137917-60-3Relevant academic research and scientific papers
Selective epoxidation of monoterpenes with H2O2 and polymer-supported methylrheniumtrioxide systems
Saladino, Raffaele,Neri, Veronica,Pelliccia, Anna Rita,Mincione, Enrico
, p. 7403 - 7408 (2003)
A convenient and efficient synthesis of monoterpene epoxides by application of heterogeneous poly(4-vinylpyridine)/methyl rhenium trioxide (PVP/MTO) and polystyrene/methyl rhenium trioxide (PS/MTO) systems is described. Even highly sensitive terpenic epoxides were obtained in excellent yield. Environment friendly, easily available, and low cost H2O2 was used as oxidant. Catalysts were stable systems for at least five recycling experiments.
Epoxidation studies of terpenes with urea hydrogen peroxide and phosphotungstic acid
Kaur, Damandeep,Manktala,Chahal,Chhabra
experimental part, p. 598 - 602 (2011/01/04)
Epoxidation of isolated and allylic olefins with dodecaphosphotungstic acid, H3[PW12O40]xH2O and urea hydrogen peroxide (UHP) adduct as an oxidant has successfully been carried out under homogenous conditions with the aid of isopropanokwater (4:1) as solvent, thereby avoiding the use of expensive phase transfer catalyst. The method has proven to be efficient in terms of percent yield, cost, reaction conditions and ease of work-up.
Selective epoxidation of monoterpenes with methyltrioxorhenium and H2O2
Villa De P., Aida L.,De Vos, Dirk E.,Montes De C., Consuelo,Jacobs, Pierre A.
, p. 8521 - 8524 (2007/10/03)
In the presence of pyridine as a co-catalyst, CH3ReO3 catalyses the epoxidation of terpenes such as α-pinene with H2O2 with minimal rearrangement of the epoxide. Pyridine is also critical to suppress isomerisation of the olefin substrate (in case of nerol, geraniol). The reaction can be directed towards selective single or double epoxidation, or in one step towards the rearranged product (e.g. from linalool to the ring- closure product linalool oxide.
Regioselective Epoxidation of Allylic Alcohols with Monoperoxyphthalic Acid in Water
Fringuelli, Francesco,Germani, Raimondo,Pizzo, Ferdinando,Santinelli, Fabio,Savelli, Gianfranco
, p. 1198 - 1202 (2007/10/02)
The epoxidation of olefinic alcohol in water only has been investigated.Simple allylic alcohols are epoxidized readily and with high yields by m-chloroperbenzoic acid.Polyolefinic alcohols are epoxidized regioselectively and with excellent yields by monoperoxyphthalic acid controlling the pH of the medium.The reactions have been carried out in the presence and absence of surfactants, and their role has been investigated.
