Jl. Paparin et al., Synthesis and functionalization of new tropanes designed for use as scaffolds in combinatorial chemistry, EUR J ORG C, (23), 2000, pp. 3909-3918
The [4+3] cycloaddition reaction between alkyloxycarbonyl-substituted pyrro
les and alpha,alpha'-dibromo ketones in the presence of diethylzinc has bee
n extended to a wide range of substrates. The functionalization of the resu
lting tropanes has been studied. It is demonstrated that such tropanes repr
esent potentially useful scaffolds.