Examlex
Supermarkets use ________ to scan codes printed on product containers.
Sigmatropic Rearrangement
A type of pericyclic reaction in which a σ-bond (sigma bond) changes position relative to a π system (pi system) within a molecule, following specific suprafacial or antarafacial pathways.
Diels-Alder
A chemical reaction between a diene and a dienophile, resulting in the formation of a cyclohexene derivative.
Diene
An organic compound containing two double bonds, often involved in polymerization and other chemical reactions.
Dienophile
A chemical compound with an electron-deficient double or triple bond that readily reacts with a diene in a Diels-Alder reaction to form cyclohexene derivatives.
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