Fe
3
O
4
@
SiO
2
@
D‐NHCS‐Tr
as efficient and reusable catalyst for the synthesis of
indol‐3‐yl‐4
H
‐chromene
via
a multi‐component reaction under solvent‐free conditions
A cheap and biocompatible ionic liquid [Betaine][H2PO4] was found to be an efficient and reusable catalyst for the direct substitution reaction of xanthen-9-ol under solvent-free conditions.
An efficient protocol for the synthesis of C3-symmetrical 1,3,5-triarylbenzenes under solvent-free conditions. γ-Al2O3/H5PW10V2O40 nanocomposite is introduced as a highly reusable catalyst.
Biocompatible ionic liquid [Betaine][H2PO4] as a reusable catalyst for the substitution of xanthen-9-ol under solvent-free conditions