35843-43-7Relevant articles and documents
Attachment of chelating ligand pockets to tinorganyl moieties
Barth, Beatrix E. K.,Harms, Klaus,Dehnen, Stefanie
, p. 2406 - 2411 (2014)
Several approaches have been undertaken to realize the synthesis of a new tinorganyl compound with a 2,2′,6′,2″-terpyridine moiety. A synthesis pathway consisting of five steps with an overall yield of 51% was successful in producing Ph3Sn(CH2)3OPhttpy [HOttpy = 2,6-bis(2′-pyridyl)-4′-(p-hydroxyphenyl)pyridine], and insight has been gained into (partial) halogenation reactions with this unprecedented tinorganyl compound. Halogenation with hydroiodic acid produced a new dinuclear complex cation that resulted from head-to-tail coordination of two monocations. Furthermore, synthesis and yields of already known intermediates have been optimized. The products were analyzed and identified by 119Sn NMR, 1H NMR, and 13C NMR spectroscopy and ESI mass spectrometry, as well as by means of single-crystal X-ray diffraction. A new compound Ph3SnR, comprising a 2,2′,6′,2″- terpyridine-functionalized ligand R, has been synthesized in a five-step procedure. On attempting to halogenate this compound, a partially iodinated derivative was obtained that forms a head-to-tail connected dimer in the salt [(PhISn(CH2)3OPhttpy)2](I3) 2 with the terpyridine units acting as chelating ligands. Copyright
Synthesis of a tin-functionalized cyclopentadiene derivative
Christoffers, Jens,Werner, Thomas,Baro, Angelika,Fischer, Peter
, p. 3550 - 3555 (2007/10/03)
A 3-tert-butyl-1-(stannylpropyl)-functionalized cyclopentadienyl ligand precursor 6 is readily available in 64% overall yield from allylic alcohol 1 by a three-step reaction sequence including Pd-catalyzed hydrostannylation with Ph3SnH. Treatment with FeCl2 and ZrCl4 · 2THF afforded corresponding ferrocene and zirconocene derivatives. Transmetallation of Sn-Ph with Li-Bu was observed under these reaction conditions by using BuLi as a base.
