A Quantitative Scale for the Extent of Conjugation of Substituted Olefines

The olefinic functional group is among the most important chemical building blocks, also playing an important role in organic and bioorganic reactions. The exact description and precise quantification of the degree of the olefinic conjugation in substituted alkenes is not trivial. The present work suggests a novel, yet simple, method toward quantifying the conjugation in a general olefin group (e.g., alkenes) on a linear scale, defined as the …