Au-Catalyzed Synthesis of Thiopyrano[2,3-<i>b</i>]indoles Featuring Tandem Rearrangement and Hydroarylation
作者:Mukund Jha、Shiv Dhiman、T. Stanley Cameron、Dalip Kumar、Anil Kumar
DOI:10.1021/acs.orglett.7b00617
日期:2017.4.21
heteroaromatic thiopyrano[2,3-b]indole is reported using conjugated enyne tethered indole sulfides, featuring skeletal rearrangement conjoined with intramolecular hydroarylation (via C3–H functionalization of the indole core) and oxidative aromatization. Subsequent Pd-catalyzed C–C coupling resulted in a 16-π electron heteroaromatic isothiochromeno[1,8,7-bcd]indole.
据报道,使用共轭烯键式吲哚硫化物进行金(III)催化的14-π电子杂芳族硫吡喃并[2,3- b ]吲哚的合成,其骨架重排与分子内氢芳基化作用(通过吲哚核的C3-H功能化)和氧化芳构化。随后的Pd催化的C–C偶联导致16-π电子杂芳族异硫氰酸色素[1,8,7- bcd ]吲哚。