Toward Soluble 5,10-Diheterotruxenes: Synthesis and Reactivity of 5,10-Dioxatruxenes, 5,10-Dithiatruxenes, and 5,10-Diazatruxenes was written by Gorski, Krzysztof;Mech-Piskorz, Justyna;Lesniewska, Barbara;Pietraszkiewicz, Oksana;Pietraszkiewicz, Marek. And the article was included in Journal of Organic Chemistry in 2020.Formula: C8H4Br2S This article mentions the following:
The following work presents three general approaches allowing, for the first time, the synthesis of 5,10-diheterotruxene derivatives I (x = O, S, NEt) containing two identical heteroatoms, namely, oxygen OOC, nitrogen NNC, or sulfur SSC. Two of described pathways involve the photocyclization of the corresponding triene II as a key step leading to a heptacyclic aromatic system. The third approach is based on the acidic condensation between ninhydrin and benzo[b]heteroole III. Typical functionalizations of the 5,10-diheterotruxenes I core have also been presented. In addition, the article discusses the advantages and limitations of the three suggested paths for receiving specific 5,10-diheterotruxene derivatives I because the universal method suitable for obtaining mols. with any type of heteroatoms is not known so far. In the experiment, the researchers used many compounds, for example, 2,3-Dibromobenzo[b]thiophene (cas: 6287-82-7Formula: C8H4Br2S).
2,3-Dibromobenzo[b]thiophene (cas: 6287-82-7) belongs to benzothiophene derivatives. Functionalized benzothiophenes are important constructs found in molecules with wide ranging biological activity and in organic materials. Its aromaticity makes it relatively stable, although as a heterocycle, it has reactive sites which allow for functionalization.Formula: C8H4Br2S
Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem