1065-93-6Relevant academic research and scientific papers
The structures of ring-expanded NHC supported copper(
Charman, Rex S. C.,Liptrot, David J.,Lowe, John P.,Mahon, Mary F.
supporting information, p. 831 - 835 (2022/02/01)
Three ring-expanded N-heterocyclic carbene-supported copper(i) triphenylstannyls have been synthesised by the reaction of (RE-NHC)CuOtBu with triphenylstannane (RE-NHC = 6-Mes, 6-Dipp, 7-Dipp). The compounds were characterised by NMR spectroscopy and X-ray crystallography. Reaction of (6-Mes)CuSnPh3 with di-p-tolyl carbodiimide, phenyl isocyanate and phenylisothiocyanate gives access to a copper(i) benzamidinate, benzamide and benzothiamide respectively via phenyl transfer from the triphenylstannyl anion with concomitant formation of (Ph2Sn)n. Attempts to exploit this reactivity under a catalytic regime were hindered by rapid copper(i)-catalysed dismutation of Ph3SnH to Ph4Sn, various perphenylated tin oligomers, H2 and a metallic material thought to be Sn(0). Mechanistic insight was provided by reaction monitoring via NMR spectroscopy and mass spectrometry.
Novel triphenyltin substituted derivatives of heavier alkaline earth metals
Englich, Ulrich,Ruhlandt-Senge, Karin,Uhlig, Frank
, p. 139 - 147 (2007/10/03)
The synthesis and characterization of a family of novel alkaline earth metal stannides, in addition to tri- and pentastannanes are described. [Ba(18-crown-6)(HMPA)2][SnPh3]2 (4), [Ca(18-crown-6)(HMPA)2][Sn(SnPh3)3]2 (5), and [Sr(18-crown-6)(HMPA)2][Sn(SnPh3)3]2 (6) were synthesized by insertion of the corresponding alkaline earth metals into the tin-tin bond of hexaphenyldistannane. Ph3SnSnPh2SnPh3 (7), and Sn(SnPh3)4 (8) became available by treating 4 with diphenyldichlorostannane. All compounds were studied by NMR spectroscopy, and X-ray crystallography. The stannanes 7 and 8 were also characterized by elemental analysis.
