Study On The Synthesis Of α-epoxycedrane

α-Epoxycedrane is a perfume with sweet wood aroma, amber aroma, and little camphor fragrant charm, the fragrant of this chemical can last long and also it one of the material of ambergris which is a very precious fragrant. As a kind of advanced adding aroma perfume, it has already been used in the production of soap, cosmetics, tobacco and so on. With the high security and the stability, these productions are well accepted.Currently, the ways of producing Epoxycedrane are various. Such as: exploitation of α-cedrene by using peracetic acid; with peroxide such as sodium perborate, sodium percarbonate, or sodium pertungstate in solvent in the presence of acetic anhydride to produce the oxide reagent, then epoxidation of α-cedrene by using the oxide reagent; acid-catalyzed rearrangements of (-)-thujopsene.This paper based on the predecessor's research, with the focus on searching production method of epoxycedrene and finding the main effects of producing this chemical in the experiments.1 , Epoxidation of α-cedrene by using peracetic acid, and then ascertain the every influence factor on the yield of epoxycedrane.2, Epoxidation of α-cedrene by using m-chloroperbenzoic acid , realized the 100% transformation of α-cedrene and the yield of epoxycedrane is over 68%,so this method have the research value on industrialization.3 , Using hydrogen peroxide as oxidant, then superinduce catalytic amounts of manganese(2+) salts and sodium bicarbonate. The results of the epoxidation ofα-cedrene is not good ,the yield of epoxycedrane only 2.17%,but as a low cost for epoxidation of olefin , so provide a new way of thinking for other researchers.4, First adoption the method which use ruthenium trichloride and the pyridine-2,6-dicarboxylic acid as catalyzer,and oxydol as the oxidant to epoxidation ofα-cedrene , this technics was the first be applied both here and abroad. This technics not only operate simply, reaction condition kindly, but also realized the whole transform of α-cedrene, and have a good selectivity. Thereby,...