Spirocyclic frameworks have attracted synthetic practitioners due to their unique three-
dimensional assembly, improved metabolic stability, solubility, and increased molecular …

Given the importance of the highly reactive nature and attractiveness of coumarins as a
precursor of natural products and pharmacological agents, tremendous efforts have been …

Spirooxindoles are frequently encountered in the basic skeleton of a diverse range of
natural alkaloids and therapeutically significant molecules. Consequently, the developments …

Microcrystalline cellulose‐immobilized Fe3O4 magnetic nanoparticles (Fe3O4@ MCC) with
iron loading 5%–20% are synthesized and characterized by scanning electron microscopy …

Here, we have demonstrated a metal-free energy-efficient mechanochemical approach for
expedient access to a diverse set of 2-amino-3-cyano-aryl/heteroaryl-4 H-chromenes …

The versatile and convergent nature of 1, 3‐dipolar cycloaddition reactions has made them
an indispensable tool in organic chemistry for synthesizing five‐membered heterocycles …

In the present research, a recyclable catalyst has been prepared via a simple approach
using chitosan as a linear polysaccharide. This paper reports the synthesis of novel copper …

Allylation of N-unsubstituted isatin N, N′-cyclic azomethine imines with Morita-Baylis-
Hillman carbonates in the presence of 1–10 mol% DABCO in DCM at room temperature …

The review describes syntheses of new benzo-fused spiro heterocycles by reactions of
isatins, oxindoles, and indenoquinoxalines with nitroalkenes, chalcones in the presence of …

An efficient and catalyst-free protocol for the synthesis of a series of indole substituted or
spiroxindole-consisted dihydropyrido [2, 3-d] pyrimidine derivatives by one-pot three …