Mild, Efficient, and Regioselective Synthesis of Diiodophenylboronic Acid Derivatives via Metal–Iodine Exchange of 5-Substituted 1,2,3-Triiodoarenes
作者:Raed Al-Zoubi、Abdellatif Ibdah、Walid Al-Jammal、Mazhar Al-Zoubi、Ahmad Almasalma、Robert McDonald
DOI:10.1055/s-0036-1589114
日期:2018.1
protocol to access hitherto unknowns 2,6-diiodophenylboronic acid and 2,3-diiodophenylboronic acid derivatives that is scalable, good in scope, no chromatography is needed, and these compounds are difficult to prepare by other means. Unique 2,6-diiodophenylboronic acid and 2,3-diiodophenylboronic acid derivatives have been synthesized via regioselective metal–iodine exchange (MIE) of 5-substituted 1,2,3-triiodoarenes
摘要 通过5-取代的1,2,3-三碘代芳烃的区域选择性金属-碘交换(MIE)合成了独特的2,6-二碘苯基硼酸和2,3-二碘苯基硼酸衍生物。反应本身的区域选择性由C 5取代基的性质显着控制,该C 5取代基以中等至良好的收率和高的位点选择性提供了所需的二碘苯基硼酸。然后检查二碘苯基硼酸对四种细菌黄腐微球菌(ATCC 9341),蜡状芽孢杆菌(ATCC 11778),大肠杆菌(ATCC 25922)和粘质沙雷氏菌(ATCC 27117)和一株白色念珠菌的体外抗菌活性。使用孔扩散测定法和稀释法。它指出,5-氟-2,3- diiodophenylboronic酸具有与2.6毫克/毫升的MIC为最有效的抗菌和抗真菌活性藤黄微球菌和白色念珠菌。该报告公开了访问迄今未知的2,6-二碘代苯基硼酸和2,3-二碘代苯基硼酸衍生物的一步式方法,该方法具有可扩展性,适用范围广,不需要色谱法,并且这些化合物很难通过其他方式制备。