Transition Metal Catalyzed, Regioselective B(4)-Halogenation and B(4,5)-Diiodination of Cage B−H Bonds in o-Carboranes
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摘要Transition metal catalyzed, regioselective carborane-cage B(4)−H iodination, bromination, and chlorination as well as B(4,5)−H diiodination were achieved by using NXS (X=I, Br), FeCl3, or IOAc as the halogenating agent, respectively. A series of previously inaccessible B(4)-halogenated o-carboranes were synthesized in a simple one-pot process, and proved to be valuable synthons for the functionalization of carboranes. Mono- and di-selectivity can be controlled by in situ removal of the carboxy directing group. The resultant 4-I-o-C2B10H11 can serve as a versatile feedstock for the construction of cage B−C(sp2), B−C(sp), B−O, and B−N bonds.
出版社接受日期31.07.2017
著者Hairong LYU, Yangjian QUAN, Zuowei XIE
期刊名稱Chemistry - A European Journal
出版年份2017
月份10
日期20
卷號23
期次59
出版社Wiley
頁次14866 - 14871
國際標準期刊號0947-6539
電子國際標準期刊號1521-3765
語言英式英語

上次更新時間 2020-28-11 於 01:56