Synthetic Route of 148231-12-3, A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 148231-12-3, Name is 5,8-Dibromoquinoxaline, molecular formula is C8H4Br2N2. In a Article£¬once mentioned of 148231-12-3
New donor-functionalized Cp ligands: Synthesis and complexation behaviour of quinoxalyl and benzothiadiazolyl systems
Sodium cyclopentadienide reacts as nucleophile with 4,7-dibromo-2,1,3- benzothiadiazole (BTZ) and leads to the new donorfunctionalized ligand Cp BTZ. Related quinoxalyl Cp systems have been prepared using Pd-catalyzed coupling with zincated Cp-metal complexes. The new ligands comprise two N-donor atoms; one of them is located in a distal position relative to the metal centre so that it cannot coordinate in a chelating manner. With Cp BTZ ligand derivatives several metal complexes have been synthesized. The new chromium(III) complex CpBTZCrCl2 (12) becomes upon activation an active catalyst for the polymerization of ethylene. Relying on DFT calculations and analysis of spin-density distribution, combined with paramagnetic NMR data a chelating coordination of the CpBTZ ligand is feasible in 12.
Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.Synthetic Route of 148231-12-3. In my other articles, you can also check out more blogs about 148231-12-3
Reference£º
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2043 | ChemSpider