Beilstein Journal of Organic Chemistry (Dec 2011)
Valence isomerization of cyclohepta-1,3,5-triene and its heteroelement analogues
Abstract
The valence isomerization of the all-carbon and heteroelement analogues of cyclohepta-1,3,5-triene into the corresponding bicyclo[4.1.0]hepta-2,4-dienes is reviewed to show the impact of the heteroatom on the stability of both valence isomers. The focus is on the parent systems and their synthetic applications.
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