Synthesis, spectral, and anti-microbial studies of thioiminium iodides and amine hydrochlorides
作者:Sebastian Britto、Philippe Renaud、Maruthai Nallu
DOI:10.1016/j.saa.2013.09.108
日期:2014.2
organomagnesium reagents to ketones, the thioiminium salts, easily prepared from lactams and amides are converted into 2,2-disubstituted and 2-monosubstituted amines by reaction with simple nucleophiles such as organocerium and organocopper reagents. The reaction of thioiminium iodides with organocerium reagents derived by transmetalation of corresponding lithium reagents with anhydrous cerium(III) chloride
为了避免在向酮中添加有机锂和有机镁试剂过程中发生不希望的去质子,通过与简单的亲核试剂(如有机铈和有机铜试剂)反应,将容易由内酰胺和酰胺制备的硫亚胺盐转化为2,2-二取代和2-单取代胺。研究了碘化亚硫碘鎓与有机铈试剂的反应,该有机铈试剂是通过将相应的锂试剂与无水氯化铈(III)进行金属转移而得到的。这些碘化亚硫碘鎓可作为良好的亲电子试剂,并接受烷基铈的双加成反应。新合成的胺的特征是1 H和1313 C NMR,IR和质谱。胺已转化为其盐酸盐,并通过COSY进行表征。这些盐酸盐已用临床分离的微生物,金黄色葡萄球菌,肺炎克雷伯菌,铜绿假单胞菌,鼠伤寒沙门氏菌和白色念珠菌进行了抗菌筛选。盐酸盐对这些细菌和真菌显示出相当好的活性。