Uzelac, Marina published the artcileTandem Mn-I Exchange and Homocoupling Processes Mediated by a Synergistically Operative Lithium Manganate, Application of 4,4′-Dimethyldiphenyl, the publication is Angewandte Chemie, International Edition (2021), 60(6), 3247-3253, database is CAplus and MEDLINE.
Pairing lithium and manganese(II) to form lithium manganate [Li2Mn(CH2SiMe3)4] enables the efficient direct Mn-I exchange of aryliodides, affording transient (aryl)lithium manganate intermediates which in turn undergo spontaneous C-C homocoupling at room temperature to furnish sym. (bis)aryls in good yields under mild reaction conditions. The combination of EPR with X-ray crystallog. studies has revealed the mixed Li/Mn constitution of the organometallic intermediates involved in these reactions, including the homocoupling step which had previously been thought to occur via a single-metal Mn aryl species. These studies show Li and Mn working together in a synergistic manner to facilitate both the Mn-I exchange and the C-C bond-forming steps. Both steps are carefully synchronized, with the concomitant generation of the alkyliodide ICH2SiMe3 during the Mn-I exchange being essential to the aryl homocoupling process, wherein it serves as an in situ generated oxidant.
Angewandte Chemie, International Edition published new progress about 613-33-2. 613-33-2 belongs to catalysis-chemistry, auxiliary class Benzene, name is 4,4′-Dimethyldiphenyl, and the molecular formula is C9H21NO3, Application of 4,4′-Dimethyldiphenyl.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia