Wang, Man; Xiang, Qirui; Si, Wen; Song, Ran; Yang, Daoshan; Li, Ming; Lv, Jian published an article in 2021. The article was titled 《Bioinspired cyclization of in situ generated γ-indolyl β,γ-unsaturated α-keto esters via an oxidative enamine process: facile approaches to pyrano[2,3-b]indoles》, and you may find the article in Organic Chemistry Frontiers.Quality Control of 5-Fluoro-1H-indole The information in the text is summarized as follows:
A bioinspired cyclization of in-situ generated γ-indolyl β,γ-unsaturated α-ketoesters with an oxoammonium salt via an oxidative enamine process was developed. Under mild conditions, the reactions afforded pyrano[2,3-b]indoles, which are found in a wide range of bioactive compounds, in good yields (up to 86% yield). The experimental process involved the reaction of 5-Fluoro-1H-indole(cas: 399-52-0Quality Control of 5-Fluoro-1H-indole)
5-Fluoro-1H-indole(cas: 399-52-0) is a member of aromaticfluorinated building blocks. Fluorine-containing aromatics have been incorporated into crop-protection chemicals (herbicides, insecticides, fungicides). Liquid crystals, positron emission tomography, and imaging systems represent new areas where fluoroaromatics and fluoroheterocyclics have gained attention.Quality Control of 5-Fluoro-1H-indole
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