3 articles
Dewar benzene
Dewar benzene is a highly strained colorless valence isomer of benzene with two fused cyclobutene rings, proposed by James Dewar in 1869 and first synthesized in 1962.
Prismane
Prismane, also called Ladenburg benzene, is a highly strained nonaromatic valence isomer of benzene with six carbons forming a triangular prism, first synthesized by Thomas Katz and Nancy Acton in 1973.
Valence isomerism
Valence isomerism, also called valence isomerization, is a form of isomerism in which compounds with the same molecular formula interconvert through pericyclic reactions driven by light or heat.