Wang, Zhi-Yong published the artcileLigand-Free Iron-Catalyzed Homo-Coupling of Aryllithium Reagents, Safety of 4,4′-Dimethyldiphenyl, the publication is Asian Journal of Organic Chemistry (2020), 9(11), 1834-1840, database is CAplus.
The synthesis of sym. biaryls via the iron-catalyzed homo-coupling of aryllithium reagents was developed under a mild condition, in the absence of ligand, with wide range of scope, and in good yields. Investigation on reaction concentration and practical utility of this environmentally friendly procedure also indicates a promising application outlook.
Asian Journal of Organic Chemistry 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 C13H11NO, Safety of 4,4′-Dimethyldiphenyl.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia