One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, Product Details of 6287-82-7, such as the rate of change in the concentration of reactants or products with time.In a article, mentioned the application of 6287-82-7, Name is 2,3-Dibromobenzo[b]thiophene, molecular formula is C8H4Br2S
Fischer dinuclear and mononuclear bis-carbene complexes of thiophene and thiophene derivatives
The reaction of dilithiated thiophene and thiophene derivatives with group 6 transition metal carbonyl precursors and subsequent alkylation afforded linearly arranged Fischer 2,5-bis-carbene and the rare unsymmetrical 2,3-bis-carbene chelated complexes. The latter requires a second lithiation to occur at an adjacent, less reactive site on the thiophene ring. The control of reactivity sites was investigated and achieved by either blocking more reactive positions with substituents or activating less reactive positions by lithium-halogen exchange reactions. A series of Fischer bis-carbene chelates were synthesized by manipulating the above variables. Structural features of Fischer mono-carbene, mononuclear bis-carbene, and bis-carbene chelated complexes were studied by IR, NMR, and single-crystal X-ray diffraction.
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Reference£º
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem