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

A series of new derivatives of 7-ethyl-4-methyl quinoline-2-one were synthesized, by cyclization reaction of m-ethyl phenol with ethylacetoacetate in the presence of sulfuric acid to yield 7-ethyl-4-methyl coumarin, which was chosen as the starting material and it was treated with hydrazine hydrate 80% to give a new compound 1-amino-4 methyl-7- ethyl quinoline-2(1H)-one. The later compound introduced in different synthetic methods to produce new 4-methyl-7-ethyl-2-qunolone derivatives containing amide, imine, and acetylenic groups (L4-L10). Synthesized compounds were characterized by FT-IR, 1H-NMR, 13C-NMR spectra and by measuring some of their physical properties.

Synthesis of New7-ethyl-4-methyl-2-Quinolone Derivatives