Selenium halide-induced bridge formation in [2.2]paracyclophanes
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Updated: Apr 21, 2026

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV
Published on: December 29, 2016
Laura G Sarbu1, Henning Hopf2, Peter G Jones3
1Department of Chemistry,"Al. I. Cuza" University of Iasi, 11 Carol I Bv., RO-700506 Iasi, Romania.
Abstract:
An addition/elimination sequence of selenium halides to pseudo-geminally bis(acetylene) substituted [2.2]paracyclophanes leads to new bridges with an endo-exo-diene substructure. The reactions have been found to be sensitive to the substitution of the ethynyl group. The formation of dienes with a zig-zag configuration is related to that observed for non-conjugated cyclic diynes of medium ring size.
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