In heterogeneous catalysis, catalysts provide a surface to which reactants bind in a process of adsorption. The reactant in an enzyme-catalyzed reaction is called a substrate. Safety of 5-Bromobenzothiophene, C8H5BrS. A document type is Article, introducing its new discovery., Safety of 5-Bromobenzothiophene
A method for the deprotonative silylation of aromatic C-H bonds has been developed using trifluoromethyltrimethylsilane (CF3SiMe3, Ruppert-Prakash reagent) and a catalytic amount of fluoride. In this reaction, CF3SiMe3 is considered to act as a base and a silicon electrophile. This process is highly tolerant to various functional groups on heteroarenes and benzenes. Furthermore, this method can be applied to the synthesis of trimethylsilyl group-containing analogs of TAC-101, which is a bioactive synthetic retinoid with selective affinity for retinoic acid receptor alpha (RAR-alpha) binding. We also report further transformations of the silylated products into useful derivatives.
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Reference：
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem