Reactions of 4-Hydroxycoumarin and 4-Hydroxyfurocoumarins with α,β-Unsaturated Nitriles. Mass Spectrometry of the New γ-Pyrano-α-pyran Derivatives
Abstract
Reactions of 4-hydroxycoumarin and 4-hydroxyfurocoumarins with αβ-unsaturated nitriles provide routes to a range of novel pyranocoumarins and furopyranocoumarins, respectively.