Manipulation of Water for Diversified Functionalization of Tetrahydro-β-carbolines (THβCs) with Indoles was written by Xu, Dekang;Ye, Fu;Ye, Jinxiang;Gao, Yu;Chen, Haijun. And the article was included in Organic Letters in 2019.Electric Literature of C9H8BrN This article mentions the following:
Water plays a crucial role in organic synthesis. However, diversified functionalization manipulated by water is still rare and remains unexplored. Herein, we report the first water-manipulated protocol to achieve the diversified functionalization of tetrahydro-β-carbolines (THβCs) in an open flask at room temperature that exhibit a broad functional-group tolerance. More water leads to monoarylation, while less water leads to diarylation. Further one-step transformation afforded oxidized bis(indolyl)methanes, eudistomin U, and the related derivatives in satisfactory yields. In the experiment, the researchers used many compounds, for example, 4-Bromo-1-methyl-1H-indole (cas: 590417-55-3Electric Literature of C9H8BrN).
4-Bromo-1-methyl-1H-indole (cas: 590417-55-3) belongs to indole derivatives. Indole is an important structural motif of various drugs, therapeutic leads besides its prevalence in numerous natural products, agrochemicals, perfumery, and dyes. It is used in perfumery and in making tryptophan, an essential amino acid, and indoleacetic acid (heteroauxin), a hormone that promotes the development of roots in plant cuttings.Electric Literature of C9H8BrN
Referemce:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles