26237-85-4Relevant articles and documents
New Studies and a Reinvestigation on Cycloadditions of (-)-Thebaine: Asymmetrical Diels-Alder Reactions with a Conformationally Fixed Chiral Diene
Pindur, Ulf,Keilhofer, Diana
, p. 947 - 954 (2007/10/02)
Some novel Diels-Alder reactions of the opium alkaloid (-)-thebaine (1) as an electron-rich diene and a reinvestigation of its reactions with cyclic and acyclic dienophiles are described.The ?-facial selectivity has been studied on the basis of structural analyses of the cycloadducts.Some related results on cycloaddition reactions of 1-methoxy-1,3-cyclohexadiene (11) are also reported. - Key Words: (-)-Thebaine / 1,3-Cyclohexadiene, 1-methoxy / Diels-Alder Reactions / Alkaloids