《Synthesis of Cyclopenta[b]indoles via a Formal [3+2] Cyclization of N-Sulfonyl-1,2,3-triazoles and Indoles》 was published in Advanced Synthesis & Catalysis in 2020. These research results belong to Duan, Shengguo; Zhang, Wan; Hu, Yuntong; Xu, Ze-Feng; Li, Chuan-Ying. COA of Formula: C8H6FN The article mentions the following:
Annulation of benzoxy-tethered N-sulfonyl-1,2,3-triazoles and indoles was developed, providing an efficient and convenient access to valuable cyclopenta[b]indoles in moderate to good yields. α,β-Unsaturated imine, which generated in situ from denitrogenation and 1,2-OBz migration of triazole, provided three carbons for the formal [3+2] cyclization reaction for the first time. The experimental part of the paper was very detailed, including the reaction process of 5-Fluoro-1H-indole(cas: 399-52-0COA of Formula: C8H6FN)
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.COA of Formula: C8H6FN
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