Oxoketene Dithiols: Synthesis of Some Heterocycles as Antimicrobials Utilizing Shrimp Chitin as a Natural Catalyst
作者:Salem E. Zayed、Awatef M. El-Maghraby、Entesar A. Hassan
DOI:10.1080/10426507.2014.887075
日期:2014.11.2
GRAPHICAL ABSTRACT Abstract 1, 2-dithiol 3-thione derivatives, as starting materials, were subjected to cycloaddition reactions in the presence of the dried outer shell of shrimp (chitin), under different reaction conditions to produce the 1, 3-dithiole-2-ylidene system. On treating 4-bromo dithiol 3-one, with dimethyl ester of acetylene dicarboxylic acid the bromo oxothiafulvene was produced. Further
图形摘要 摘要 1, 2-dithiol 3-thioone 衍生物作为起始原料,在干燥的虾壳(几丁质)存在下,在不同反应条件下进行环加成反应,生成 1, 3-dithiole-2 -亚基系统。在用乙炔二甲酸的二甲酯处理4-溴二硫醇3-one时,产生溴氧代硫富烯。DMAD的进一步除了bromotrithiafulvene得到螺溴衍生物。三硫酮和三硫富烯也加入到醌类、环己二烯和环戊二烯单体中,通过1,3-偶极环加成反应生成相应的加合物。对部分产品对甘蔗厂分离出的微生物进行检测,发现浓度为1×10-6的抑菌圈。产品 (2, 6, 9, 16, 23, 25, 和 26) 对 Bacillus sub.、E.Coli 和 Asper 显示出高活性。尼日尔。