ACTA CHIMICA SLOVENICA, vol.61, no.3, pp.623-628, 2014 (SCI-Expanded)
Article / Article
ACTA CHIMICA SLOVENICA
Science Citation Index Expanded (SCI-EXPANDED), Scopus
Indenonaphthopyran, ultrasound, copper(II) triflate, 1,3-indandione, 2-naphthol, PROMOTED SYNTHESIS, IONIC LIQUIDS, BETA-NAPHTHOL, DERIVATIVES, CONDENSATION, CHLORIDE, ACID
Yıldız Technical University Affiliated:
An effective and environment-friendly protocol for the synthesis of indenonaphthopyrans has been developed by one-pot reaction of 2-naphthol, various aromatic aldehydes and 1,3-indandione, in the presence of copper(II) triflate as the catalyst while using reflux (Method A) and ultrasound (Method B). The Method B approach offers the advantages of a simple reaction method, short reaction time, excellent yield, and showcases the economic importance of the catalysts for such processes.