Current Chemistry Letters An overview on synthesis and reactions of coumarin based
compounds Page 1 * Corresponding author. E-mail address: Mahmoud.Tolba@sci.nvu.edu.eg …

Oil is the largest source of contamination of soil and water in the world despite its modernity
and oil pollution occurs when oil leaking materials to soil or water. 1, 2 This pollution affects …

Quinazoline compounds have gained significant attention in the fields of agriculture and
chemistry due to their diverse activities. In this study, we focused on a series of quinazoline …

This manuscript reports the preparation and toxicological efficacy testing of nine
oxoimidazolidine and cyanoguanidine compounds (3a, 3b, 3c, 3d, 3e, 3f, 3g 4a, and 4b) …

Pyrimidines (“m-diazine”) were known as the breakdown products of uric acid. The first
pyrimidine derivative to be isolated was alloxan (5, 5-dihydroxypyrimidine-2, 4, 6 (1H, 3H …

Heterocyclic compounds have a vital role in our biological system. They are an integral part
of many pharmacologically active molecules, natural products and nucleic acids. 1-15 The …

Pyridine derivatives are an important class of azaheterocycles found in many natural
products, active pharmaceuticals and functional materials. 1-8 Synthetic routes appeared …

Organic compounds are very important in nature due to their different applications. 1-17
Urea and Thiourea its derivatives constitute an important class of heterocyclic compounds …

2-((3-cyano-4, 6-distyrylpyridin-2-yl) thio) acetophenone (2) was synthesized by the reaction
of 3-cyano-4, 6-distyrylpyridin-2 (1H)-thione (1) with an alkylating agent, phenacyl bromide …

Fused pyrimidines continue to attract considerable attention of researchers in different
countries because of their great practical usefulness, primarily, due to a very wide spectrum …