Narayana, B. published the artcileSimple syntheses of 5-fluoro/ chloro/ bromoindole-2-methanols and 5-fluoro/ chloro/ bromoindole-2-aldehydes, Quality Control of 220943-23-7, the publication is Organic Chemistry: An Indian Journal (2006), 2(1-3), 5-9, database is CAplus.
Efficient and simple methods for the syntheses of 5-haloindole-2-methanols and 5-haloindole-2-aldehydes have been described. 5-Haloindole-2-methanols were prepared by reduction of Me 5-haloindole-2-carboxylates with sodium borohydride in methanol/ THF media and 5-haloindole-2-aldehydes were prepared from the prepared 5-haloindole-2-methanols by oxidation with pyridinium chlorochromate or chromium trioxide-pyridine prepared in situ. The synthesized compounds were isolated in good yields and characterized by 1H NMR, 13C NMR, FABMS and elemental anal.
Organic Chemistry: An Indian Journal 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, Quality Control of 220943-23-7.
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