Palladium-Catalyzed Direct and Specific C-7 Acylation of Indolines with 1,2-Diketones was written by Xie, Guilin;Zhao, Yuhan;Cai, Changqun;Deng, Guo-Jun;Gong, Hang. And the article was included in Organic Letters in 2021.HPLC of Formula: 4769-96-4 This article mentions the following:
Herein, a palladium-catalyzed direct and specific C-7 acylation of indolines in the presence of an easily removed directing group was developed. This strategy usually considered as a practical strategy for the preparation of acylated indoles because indoline can be easily converted to indole under oxidation conditions. In particular, these strategy greatly improved the alkacylation yield of indolines for which only an unsatisfactory yield could be achieved in the previous studies. Furthermore, the reaction can be scaled up to gram level in the standard reaction conditions with a much lower palladium loading (1 mol %). In the experiment, the researchers used many compounds, for example, 6-Nitro-1H-indole (cas: 4769-96-4HPLC of Formula: 4769-96-4).
6-Nitro-1H-indole (cas: 4769-96-4) belongs to indole derivatives. Indole, first isolated in 1866, and it is commonly synthesized from phenylhydrazine and pyruvic acid, although several other procedures have been discovered. 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.HPLC of Formula: 4769-96-4
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