Catalytic Rearrangement Reaction of p-Hydroxybenzyl Alcohols with o-Alkynylnaphthols for Synthesis of Naphthopyrans

Herein, a Brønsted acid–catalyzed rearrangement reaction of p-hydroxybenzyl alcohols with o-alkynylnaphthols has been established, thus affording a series of structurally diverse naphthopyrans in moderate to good yields. This study represents...