753451-95-5Relevant academic research and scientific papers
Double ring-closing metathesis reaction of nitrogen-containing tetraenes: Efficient construction of bicyclic alkaloid skeletons and synthetic application to four stereoisomers of lupinine and their derivatives
Ma, Shengming,Ni, Bukuo
, p. 3286 - 3300 (2007/10/03)
The double ring-closing metathesis reaction of nitrogen-containing tetraenes was studied. The selectivity of the fused/dumbbell-type products can be controlled by the electronic/steric effects of the substituents attached to the C=C bonds and the s-cis/s-trans conformational ratios of the substrates. This methodology has also been successfully applied to the enantioselective synthesis of four stereoisomers of lupinine and their derivatives.
