Jiang, Bo et al. published their research in Organic Chemistry Frontiers in 2017 | CAS: 4769-96-4

Rhodium(II)-catalyzed intermolecular [3 + 2] annulation of N-vinyl indoles with N-tosyl-1,2,3-triazoles via an aza-vinyl Rh carbene was written by Jiang, Bo;Shi, Min. And the article was included in Organic Chemistry Frontiers in 2017.Product Details of 4769-96-4 This article mentions the following:

The rhodium(II)-catalyzed annulations of N-vinyl indole derivatives and N-tosyl-1,2,3-triazoles have been developed in this paper, providing a convenient, efficient and straightforward access to synthesize indoles containing a N-dihydropyrrole in moderate to good yields. Furthermore, the reaction of N-vinyl indoles with 2.5 equivalent of N-tosyl-1,2,3-triazoles gave C3-functionalized indoles containing a N-dihydropyrrole in moderate yields after reduction with NaBH₃CN in a one-pot manner. This finding gives a new synthetic protocol for the preparation of indoles containing a N-dihydropyrrole under mild conditions. In the experiment, the researchers used many compounds, for example, 6-Nitro-1H-indole (cas: 4769-96-4Product Details of 4769-96-4).

6-Nitro-1H-indole (cas: 4769-96-4) belongs to indole derivatives. Indole exists overwhelmingly in the 1H-indole form as do other simple indoles. They are capable of binding to a variety of receptors with high affinity and thus have applications in a wide range of therapeutic areas.Product Details of 4769-96-4

Referemce:
Indole alkaloid derivatives as building blocks of natural products from聽Bacillus thuringiensis聽and聽Bacillus velezensis聽and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles