Method for the Preparation of C-4 Coupled Flavonoids, Proanthocyanidins and Analogues Thereof

摘要

The invention relates to a novel process for the preparation of C-4 coupled flavonoids, proanthocyanidins and analogues thereof. According to a specific application of the invention, there is provided a method for the preparation of proanthocyanidins and proanthocyanidin analogues.