English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Two novel and environmentally benign organosulfonic acid-functionalized silica-coated magnetic nanoparticle catalysts 1a (Fe3O4@SiO2@MeE thermal gravimetric analysis (TGA), vibrating sample magnetometer (VSM) and acid/base titration. This catalyst was used in the reactions of a series of aldehydes, β-keto esters, and urea/thiourea. The catalyst was easily separated by an external magnet and the recovered catalyst was reused in four cycles without significant loss of activity. This green and reusable catalyst accompanied by simple experimental procedure and product isolation could be considered as an alternative protocol which will hopefully develop a clean and eco-friendly strategy for the synthesis of 3,4-dihydropyrimidin-2-ones/thiones (DHPMs) derivatives.

A novel water-tolerant organosulfonic acid-functionalized silica-coated magnetic nanoparticles as a hydrophobic, recyclable and magnetically separable catalyst for the solvent-free Biginelli reaction