OMICS International OMICS International is a scientific organization that drives the progress of research through open access journals and organizes international conferences, The best in science news, commentary, and research. Organic Chemistry: Current Research Volume 6, Issue 1 Synthesis and Investigation of New Different PyrimidineThiones Afsun Sujayev, Emin Garibov, Nazar Nazarov, Vagif Farzaliyev Enantioselective Michael Addition of Diethyl Malonate on SubstitutedChalcone Catalysed by NickelSparteine Complex Manojkumar U Chopade A Concise Review on Biological Activity of Tridax procumbens Linn Shahnawaz Ahmad Mir, Zubair Jan, Shafia Mir, Ayaz Mahmood Dar, Gouri Chitale Synthesis Characterization and In Vitro Antitumor Evaluation of NewPyrazolo34dPyrimidine Derivatives Ahmed M ElMorsy, Mohamed S ElSayed, Hamada S Abulkhair