Palladium-catalyzed C-3 desulfitative arylation of indolizines with sodium arylsulfinates and arylsulfonyl hydrazides
作者:Chunjie Wang、Huali Jia、Zhiwei Li、Hui Zhang、Baoli Zhao
DOI:10.1039/c5ra25504j
日期:——
efficiently prepared by direct C-3 arylation of indolizines using sodium arylsulfinates and arylsulfonyl hydrazides. Pd-catalyzed desulfitative C-3 arylation with sodium arylsulfinates was achieved with the assistance of peroxides, and the catalytic efficiency was promoted by N-containing ligands. Arylsulfonyl hydrazides were also successfully applied in Pd-catalyzed desulfitative C-3 arylation with indolizines
通过使用芳基亚磺酸钠和芳基磺酰肼直接将吲哚嗪进行C-3芳基化,可以有效地制备衍生化的吲哚嗪。在过氧化物的辅助下,用芳基亚磺酸钠实现了钯催化的C-3芳族脱硫反应,并且通过含氮配体提高了催化效率。芳基磺酰肼也已成功地用于吲哚嗪类化合物在Pd催化的脱硫C-3芳基化中,在较温和的条件下,组分溶剂中的侧均偶联反应可得到抑制。两种方法均以高收率合成了各种衍生物,为合成C-3功能化的吲哚嗪分子提供了便利的方案。