Palladium-Catalyzed Allylation of 2-Hydroxy-1,4-naphthoquinone: ­Application to the Preparation of Lapachol

Kazantzi Georgia. Malamidou-Xenikaki Elizabeth. Spyroudis Spyros. Synlett  2007,  427 

In Scheme 4, substituents R¹ and R² were missing in the product. The corrected Scheme is shown here: []