K<sub>2</sub>CO<sub>3</sub>-Promoted oxy-Michael Addition/Cyclization of <i>α</i>,<i>β</i>-Unsaturated Carbonyl Compounds with Naphthols: Synthesis of Naphthopyrans

oleh: Shan-Shan Li, Li-Li Zhao, Min Pan, Na Feng, Jin-Bao Peng, Ai-Jun Ma

Format: Article
Diterbitkan: MDPI AG 2023-07-01

Deskripsi

A potassium carbonate promoted tandem oxy-Michael addition/cyclization of <i>α</i>,<i>β</i>-unsaturated carbonyl compounds with naphthol derivatives for the synthesis of 2-substituted naphthopyrans was developed. Using the readily available, inexpensive potassium carbonate as the promoter, a range of different substituted naphthopyrans were prepared.