Synthesis and Antimicrobial Activity of Some New S-Substituted Quinazolinones Containing Different Heterocyclic Rings
作者:Suaad M.H. Al-Majidi、Mohammed G.A. Al-Khuzaie
DOI:10.14233/ajchem.2015.18417
日期:——
New thiazolidine, azetidine and tetrazole derivatives of 2-mercapto-3-phenyl-4(3H)-quinazolinone are synthesized via the conversation of ester derivative (2) of 2-mercapto-3-phenyl-4(3H)-quinazolinone to hydrazide (3) by the reaction with hydrazine hydrate followed by Schiffs bases (4-8) formation by reaction with different aromatic aldehydes. Finally, Schiffs bases reacted with (2-mercptoacetic acid, monochloroacetyl chloride and sodium azide) to form thiazolidine (9-13), azetidine (14-18) and tetrazole (19-23) derivatives, respectively. The structure of newly synthesized compounds were identified by spectral methods their [FTIR and some of them by 1H NMR, 13C NMR] and measurements some of its physical properties and some specific reactions. Furthermore were studied the effects of the preparing compounds on some strains of bacteria and fungicidal.
通过 2-巯基-3-苯基-4(3H)-喹唑啉酮的酯衍生物 (2) 与水合肼反应生成酰肼 (3),然后与不同的芳香醛反应生成希夫斯碱 (4-8),合成了 2-巯基-3-苯基-4(3H)-喹唑啉酮的新噻唑烷、氮杂环丁烷和四唑衍生物。最后,希夫斯碱与(2-巯基乙酸、一氯乙酰氯和叠氮化钠)反应,分别生成噻唑烷(9-13)、氮杂环丁烷(14-18)和四唑(19-23)衍生物。通过光谱方法[傅立叶变换红外光谱和其中一些的 1H NMR、13C NMR]确定了新合成化合物的结构,并测量了其一些物理性质和一些特定反应。此外,还研究了制备的化合物对一些菌株和杀菌剂的影响。