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Download fileSynthesis of α,α,α′,α′-Tetrachloro‑Δ1‑bipyrrolines and 4,8-Dichloro-2,6-diazasemibuvallenes
journal contribution
posted on 2015-02-20, 00:00 authored by Ming Zhan, Shaoguang Zhang, Zhe Huang, Zhenfeng XiA series
of 4,8-dichloro-2,6-diazasemibullvalenes were synthesized
and isolated from the reaction of α,α,α′,α′-tetrachloro-Δ1-bipyrrolines with lithium via C–N bond formation.
All those dichlorodiazasemibullvalene derivatives demonstrated extremely
rapid aza-Cope rearrangement in solution. An unprecedented skeletal
rearrangement of 4,8-dichloro-2,6-diazasemibullvalene derivatives
took place, resulting in the formation of a new bipyrroline skeleton.