Vinylindenes and some heteroanalogs in the Diels-Alder reaction. VI. Vinylbenzo[b]thiophenes and ethenetetracarbonitrile was written by Cherry, Winston H.;Craig, John T.;Porter, Quentin N.. And the article was included in Australian Journal of Chemistry in 1979.COA of Formula: C9H7BrS This article mentions the following:
3-Vinylbenzo[b]thiophene and 3 simple homologs give normal Diels-Alder adducts, e.g. I, with ethenetetracarbonitrile, whereas the 3-methyl-2-vinyl- and 2-methyl-3-(1-propenyl) derivatives give cyclobutanes, e.g. II. 2-Methyl-3-vinylbenzo[b]thiophene and ethenetetracarbonitrile give an adduct resulting from reaction of a tautomeric form of the diene, but a naphthalene analog and a phenanthrene analog of this substituted benzothiophene give normal adducts. In the experiment, the researchers used many compounds, for example, 3-Bromo-2-methylbenzo[b]thiophene (cas: 10243-15-9COA of Formula: C9H7BrS).
3-Bromo-2-methylbenzo[b]thiophene (cas: 10243-15-9) belongs to benzothiophene derivatives. Benzothiophene is a fused ring compound of thiophene ring and benzene ring, which is an important class of heterocycles with advantageous structures. It is found within the chemical structures of pharmaceutical drugs such as zileuton, raloxifene, and sertaconazole, and also BTCP.COA of Formula: C9H7BrS
Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem