Condensed thiophene ring systems. XV. Preparation and reactions of 2- and 3-(secondary amino)benzo[b]thiophenes was written by Chippendale, Kevan E.;Iddon, Brian;Suschitzky, Hans;Taylor, David S.. And the article was included in Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999) in 1974.Recommanded Product: 2,3-Dibromobenzo[b]thiophene This article mentions the following:
2,3-Dibromobenzo[b]thiophene with piperidine, pyr-rolidine, and morpholine gave 21-74% of the corresponding 2-(secondary amino)benzo[b] thiophenes, e.g. I, which underwent C-3 acetylation. I with Br and HNO3-AcOH gave the 3-bromo and 3,6-dinitro derivatives, resp. Nitrosation of 3-piperidinobenzo-[b]thiophene gave the 2-oxime of benzo[b]thiophene-2,3-dione. The reactions of the p-tolysulfonylhydrazones of 2-morpho-linobenzo[b]thiophene-3- and 3-piperidinobenzo[b]thiophene-2-carboxaldehyde with NaOMe in [MeO(CH2)2]2O are reported. In the experiment, the researchers used many compounds, for example, 2,3-Dibromobenzo[b]thiophene (cas: 6287-82-7Recommanded Product: 2,3-Dibromobenzo[b]thiophene).
2,3-Dibromobenzo[b]thiophene (cas: 6287-82-7) belongs to benzothiophene derivatives. Benzothiophene is relatively a stable molecule. The electrophilic substitution of benzothiophene systems is much less regioselective than that of indoles. It is found within the chemical structures of pharmaceutical drugs such as raloxifene, zileuton, and sertaconazole, and also BTCP.Recommanded Product: 2,3-Dibromobenzo[b]thiophene
Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem