Hydrogen bond distinction and activation upon catalytic etherification of hydroxyl compounds†
Abstract
An excellent linear correlation between ln δ (OH chemical shift) and 1/T (temperature) is discovered for the first time for hydroxyl compounds. The derived slope (A) provides information as an index not only for distinguishing different types of H-bonds, but also for predicting their reactivities. This finding can be extended to other H-bond-containing molecules.