195051-38-8Relevant academic research and scientific papers
Ruthenium-capping of di- and tetraethynylbiphenyls
Gomez-Lor, Berta,Santos, Amelia,Ruiz, Marta,Echavarren, Antonio M.
, p. 2305 - 2310 (2001)
The di- and tetraalkynyl biphenyls 3 and 5 have been synthesized from the tetrabromo derivative 1 by using Pd-catalyzed cross-coupling reactions. The reaction of 3 or 5 with cis-[RuCl2(dppe)2] (8) affords vinylidene ruthenium complexes, which were deprotonated with Et3N to give the terminal σ-alkynylruthenium derivatives 9-12. The reaction of 3 or 5 with [Ru(CO)ClH(PPh3)3] (13) gave the corresponding di-σ-alkenyl ruthenium complexes 14 and 15.
Palladium catalyzed synthesis of tetraethynyl and tetraethenyl biphenyls: Elongated tetrahedral tectons
Gomez-Lor, Berta,Echavarren, Antonio M.,Santos, Amelia
, p. 5347 - 5350 (2007/10/03)
The palladium-catalyzed coupling of O-acylated 3,3',5, 5'-tetrabromo-2,2'-biphenols with the corresponding stannanes furnishes tetraethenyl and tetraethenyl derivatives which, topologically can be considered as elongated tetrahedra.
