Robust, air-stable tridentate and bidentate ferrocenylphosphines 1,2-bis(diphenylphosphino)-1′-(diisopropylphosphino)-4-tert- butylferrocene, L5, and 1,1′-bis(diisopropylphosphino)-3,3′- bis(tert-butyl)ferrocene, L9, combined with 1 mol% of [PdCl(η3- C3H5)]2 led to two new catalytic systems which allow the coupling of aniline derivatives with mono- and dihaloarenes to form functionalized diarylamines and triarylamines. The excellent selectivity of the reactions avoids the deleterious dehalogenation of the substrates and products. The X-ray structure characterization of the related complex [PdCl 2(L9)] is reported in which ligand L9 in its meso form is significantly distorted. © 2014 Published by Elsevier B.V.
Mom, S., Platon, M., Cattey, H., Spencer, H. J., Low, P., & Hierso, J. C. (2014). Palladium-catalyzed formation of secondary and tertiary amines from aryl dihalides with air-stable ferrocenyl tri- and diphosphines: Synthesis and X-ray structure of efficient catalysts beyond [PdCl2(DPPF)]. Catalysis Communications, 51, 10-14. https://doi.org/10.1016/j.catcom.2014.03.012