Highly efficacious preparation of 3,3′-(arylmethylene)-bis(2-hydroxynaphthoquinone) derivatives catalyzed by a nanorod-structured organic–inorganic hybrid material, By Abdolkarim Zare

Research

Title	Highly efficacious preparation of 3,3′-(arylmethylene)-bis(2-hydroxynaphthoquinone) derivatives catalyzed by a nanorod-structured organic–inorganic hybrid material
Type	Article
Keywords	3,3′-(Arylmethylene)-bis(2-hydroxynaphthoquinone); Organic–inorganic hybrid material; Nanorod-[SiO2–pr–im–SO3H]CF3CO2] (N-[SPIS][TFA]); Pseudo-multi-component reaction; Solvent-free
Journal	RESEARCH ON CHEMICAL INTERMEDIATES
DOI	10.1007/s11164-020-04375-6
Researchers	Abdolkarim Zare (First researcher) , Jaleh Atashrooz (Second researcher) , Mohammad Mehdi Eskandari (Third researcher)

Abstract

A nanorod-structured organic–inorganic hybrid material namely nanorod-[SiO2–Pr–Im–SO3H][CF3CO2] (N-[SPIS][TFA]) has been applied as a highly efficacious, dual-functional, and recoverable catalyst for the solvent-free preparation of 3,3'-(arylmethylene)-bis(2-hydroxynaphthoquinone) {3,3′-(arylmethylene)-bis(2-hydroxynaphthalene-1,4-dione)} derivatives in high yields and relatively short times. The one-pot pseudo-multi-component reaction of 2-hydroxynaphthoquinone (2-hydroxynaphthalene-1,4-dione) (2 eq.) and arylaldehydes (1 eq.) has been used for the preparation of these compounds.