Publication year: 2023Source: American Journal of Organic Chemistry, Volume 11, Number 1 Kazal Baran Nath, Dr. Sreebash Chandra Bhattacharee Oil Characteristics of the seeds of Trigonella foenum graecum Linn were studied. After purification physical chemical characteristics of the oil were determined and these values were compared with those of the standard oils. Fatty acid compounds of the oil were estimated by GLC. The ash, protein, phosphorus, moisture, crude fibre, starch, nitrogen, manganese contents of the cake were also determined ..read more

Publication year: 2020Source: American Journal of Organic Chemistry, Volume 10, Number 1 Akoun Abou, Abdoulaye Djandé, Amadou Tidjani Ilagouma, Olivier Ouari, Adama Saba The paper presents a combined experimental and computational study of 7-substituted coumarin derivative, the 2-oxo-2H-chromen-7-yl benzoate (I). The compound was prepared in the laboratory by linking the coumarin system (7-hydroxycoumarin) to benzoyl chloride and crystallized in the monoclinic space group P21 with ? = 3.86010(10), ? = 27.7876(9), ? = 5.7453(2) Å, ? = ? = 90, ? =91.063(3)° and ? = 2. The compound has been chara ..read more

Publication year: 2019Source: American Journal of Organic Chemistry, Volume 9, Number 2 C. Villot, M. E. Howard, K. W. Kittredge The microwave-assisted acid catalyzed synthesis of biodiesel from various feedstocks are reported. The feedstocks consist of vegetable, canola, olive, avocado, corn, cottonseed and soybean oils and also were compared to a commercial biodiesel sample that was prepared from a mixture of varying oils by GC-MS. All oils gave biodiesel in excellent yields ..read more

Publication year: 2019Source: American Journal of Organic Chemistry, Volume 9, Number 1 Nagwa M. M. Hamada, Alshimaa Abd Elgawad The objective of this study was to investigate and evaluate both vanillin and quinazolinone ring systems as anti-radical agents. Herein, we discuss the design strategy and report the synthesis of five novel antioxidants as quinazolinone–vanillin derivatives. The structures of the synthesized heterocyclic compounds have been recognized based on their melting point (m.p.), elemental analysis, IR and 1H & 13C NMR and mass spectroscopic data. In this work, we report ..read more

Publication year: 2019Source: American Journal of Organic Chemistry, Volume 9, Number 1 Emir Horozić, Jasmin Suljagić, Mersiha Suljkanović Schiff bases and complexes are today the subject of many studies because of the established biological, inhibitor and catalytic properties. The aim of this paper is to investigate the interaction of Schiff base obtained by reaction of 2,2-dihydroxyindane-1,3-dione (ninhydrin) and the essential amino acid tryptophan with copper(II) ion. Spectral characterization and examination of the potential antimicrobial and antioxidant activity of the synthesized comple ..read more

Publication year: 2019Source: American Journal of Organic Chemistry, Volume 9, Number 1 Md. Ashraful Alam, Kazuaki Shimada, Yusuke Taneichi, Md. Wahab Khan, Md. Abdur Rashid, Md. Chanmiya Sheikh Carbodithioate esters are important functional organosulfur compounds widely used in different fields such as pharmaceuticals, agrochemicals and material sciences. α, β-unsaturated dithioesters, carbodithioates are the type of organosulfur chemical compounds that attract the special interest of organic chemists. α, β-unsaturated dithioester type compounds have various applications in medicinal chemistr ..read more

Publication year: 2018Source: American Journal of Organic Chemistry, Volume 8, Number 2 Sosso Siaka, Jules Yoda, Abdoulaye Djandé, Bruno Coulomb (Coumarin-3-yl)-benzoates, a series of coumarin derivatives were designed, synthesized and characterized as fluorescent compounds. The structural assignments of these compounds were examined based on their corresponding FT-IR, ESI-MS, and 1H- and 13C-NMR spectral data in addition to their crystal structures determined by X-ray diffractometry. The fluorescence spectra, recorded in the solid state, have been investigated. The effects of various substitu ..read more

Publication year: 2018Source: American Journal of Organic Chemistry, Volume 8, Number 1 Bello Y. Makama An effective ene-reaction protocol was developed for the preparation of cis-fused bicyclic lactones catalyzed by various Lewis acids at low temperatures ..read more

Publication year: 2018Source: American Journal of Organic Chemistry, Volume 8, Number 1 José Eladio Antonio-Arias, Verónica del C. Díaz-Oliva, Nancy Romero-Ceronio, Abraham Gómez-Rivera, Hidemi Aguilar-Mariscal, Luis F. Roa de la Fuente, Carlos E. Lobato-García The synthesis of o-, m- and p-fluorine-substituted chalcones at the ring “B” was accomplished by a Claisen-Schmidt condensation between the benzaldehyde and acetophenone. The reaction was performed in solvent-free conditions with microwave activation and good yields (> 75%) were obtained. It is noteworthy that the application of conv ..read more

Publication year: 2018Source: American Journal of Organic Chemistry, Volume 8, Number 1 Omaima M. Aboul Wafa, Hoda M. G. Daabees, Alaa A. El-Tombary, Eman S. Ezz-El Dien A previously reported amide bond formation performed by treating ethyl 2-phenyl-4-oxo-3(4H)quinazolineacetate with the appropriate amine in boiling HOAc to synthesize a series of quinazolin-4-one derivatives was investigated. Elucidation of the structure of the synthesized products by IR, 1H NMR and 13C NMR indicated that, unfortunately, no amide bond was formed. The only product produced in all reactions was 4-oxo-2-phenyl-4 ..read more