As heterocyclic nitrogen molecules, tetrahydropyridines have been recognized as significant
constituents of many natural and synthetic compounds, many of which have interesting …

In the present investigation, new heterogeneous catalyst pumice supported sulfonic acid
(pumice@ SO 3 H) was prepared from natural pumice by simple agitation with …

Recent advances in the synthesis of six-membered heterocycles via multicomponent reactions
(from 2017 to 2022) Page 294 CHAPTER FIVE Recent advances in the synthesis of …

The quinoline moiety is a privileged scaffold because of the wide spectrum of its biological
activities. 1, 2 Along with the Friedlander annulation, other procedures developed for the …

The present work deals with a catalytic application of aluminized polyborate as a mild solid
acid catalyst for multicomponent synthesis of 1, 8‐dioxo‐octahydroxanthenes under solvent …

The present work reports a catalytic application of aluminized polyborate for the solvent-free
one pot four-component green, efficient and cost-effective synthesis of polydroquinoline …

The development of simple, elegant, and eco-friendly methods for preparing widely used
organic compounds from readily available catalysts and reagents is one of the major goals …

Owing to both Lewis and Bronsted acid active sites on sulfated polyborate under
homogenous conditions, we were keen on developing iodination protocol of arenes that can …

This work demonstrates the first-ever use of carbonic acid from sparkling water and the one
generated in-situ from dry ice for efficient Knoevenagel condensation. Various aldehydes …

A simple, efficient, and green method of preparation for the synthesis of highly substituted
pyridines by multicomponent reaction of acetophenones, aldehydes, and ammonium …