Pirovano, Valentina published the artcileGold-catalyzed synthesis of tetrahydrocarbazole derivatives through an intermolecular cycloaddition of vinyl indoles and N-allenamides, Safety of 5-Fluoro-1H-indole-2-carbaldehyde, the publication is Chemical Communications (Cambridge, United Kingdom) (2013), 49(34), 3594-3596, database is CAplus and MEDLINE.
A gold-catalyzed formal [4+2] cycloaddition of vinyl indoles and N-allenamides leading to tetrahydrocarbazoles is described. E.g., in presence of AuCl3, [4+2] cycloaddition of vinyl indole (I) and N-allenamide (II) gave 83% tetrahydrocarbazole derivative (III). Moreover, new multicomponent reactions of vinyl indoles with two allene mols. are reported.
Chemical Communications (Cambridge, United Kingdom) published new progress about 220943-23-7. 220943-23-7 belongs to indole-building-block, auxiliary class Indole,Fluoride,Aldehyde, name is 5-Fluoro-1H-indole-2-carbaldehyde, and the molecular formula is C9H6FNO, Safety of 5-Fluoro-1H-indole-2-carbaldehyde.
Referemce:
https://www.nature.com/articles/s41429-020-0333-2,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles