Application of 6287-82-7, Chemical Research Letters, May 2021. This type of reactivity has quickly become one of the cornerstones of modern catalysis . In a article, 6287-82-7, molcular formula is C8H4Br2S, introducing its new discovery.
Various tetrayne systems were converted under dual gold-catalyzed conditions. For symmetric tetraalkynyl-substituted thiophenes, bearing two alkyl-substituted alkynes and two terminal alkyne units, bidirectional cyclizations led to the efficient formation of dibenzothiophene systems. In all cases, selective CH activation of the C?H bond of the alkyl substituent was observed leading to cyclopentane moieties annelated to the newly formed aromatic cores. If two thiophene moieties were tethered over the attached non-terminal alkynes, depending on the length of the connecting alkyl tether, either bidirectional processes or tandem processes can be addressed leading to interesting molecular structures, such as spiro compounds or isolated benzothiophenes connected by a C?C bond. Other electron-rich heterocycles also reacted. While the reactions even worked for some mixed systems, other cases only delivered the products of a mono-cyclization.
A reaction mechanism is the microscopic path by which reactants are transformed into products. Each step is an elementary reaction. In my other articles, you can also check out more blogs about 6287-82-7
Reference：
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem