892-20-6Relevant articles and documents
Tsai, T. T.,Lehn, W. L.
, p. 2981 - 2985 (1966)
Organometallic iridium complexes of (Z)-1-Phenyl-2-(4′,4′-dimethyl-2′-oxazolin-2′-yl)-eth-1-en-1-ate: Structural aspects, reactivity and applications in the catalytic dehydrogenation of Alkanes#
Clément, Roxanne,Gossage, Robert A.,Lough, Alan J.,May, Kathleen L.
supporting information, p. 2042 - 2047 (2021/09/16)
The treatment of [IrCl(cod)]2 with (Z)-1-phenyl-2-(4′,4′- dimethyl-2′-oxazolin-2′-yl)-eth-1-en-1-ol (HL) in the presence of base yields the first Ir complex of this ligand class: Ir(κ2- N,O-L)(cod) (3). Complex 3 is reactive with MeI or HSnPh3 to yield the oxidative addition products 4 (trans-Ir(Me)I(κ2-N,OL)( cod)) and 5 (cis-IrH(SnPh3)(κ2-N,O-L)(cod)), respectively. All three of these derivatives have been fully characterised including via single crystal X-ray diffraction data. Complex 3 is generally resistant to cod ligand substitution but shown to be reactive with CO (g) to give Ir(κ2-N,O-L)(CO)2 (6). In addition, 3 is demonstrated to be a dehydrogenation catalyst for the conversion of C8H16 into cyclooctene and H2 under acceptorfree conditions.
Stereoselective radical tandem cyclohydrostannation of optically active di-unsaturated esters of TADDOL
Gerbino, Dario C.,Koll, Liliana C.,Mandolesi, Sandra D.,Podesta, Julio C.
, p. 660 - 665 (2009/01/30)
This paper reports the results obtained in a study on the radical addition of triorganotin hydrides, R3SnH (R = Me, n-Bu, Ph; Neophyl), to four TADDOL unsaturated diesters. It was found that diese reactions lead in high yields to products of cyclohydrostannation. It was also found that whereas the addition of these hydrides to TADDOL diacrylate and TADDOL dimethacrylate leads to the expected mixtures of two and four cycloundecane diastereoisomers, respectively, the addition of triphenyltin hydride to TADDOL disubstituted acrylates yields only four out of the 16 possible stereoisomers. The observed high stereoselectivity is consistent with the radical tandem cyclohydrostannation mechanism proposed. Only in the case of the hydrostannation of TADDOL diacrylate with trimethyl- and triphenyltin hydrides could the diastereoisomers obtained in higher proportion (5a and 8a) be isolated in pure form. The subsequent reduction (lithium aluminum hydride) of macrolides 5a and 8a afforded the corresponding optically active diols 26 and 27 in high yield. Full 1H, 13C, and 119Sn NMR data are given.
Formation of cyclo- and polystannanes by dehydrogenative stannane coupling catalyzed by platinum(II) complexes
Thompson, Susan M.,Schubert, Ulrich
, p. 1959 - 1964 (2008/10/09)
Reaction of (PhMe2P)2PtMe2 or [(κ2-P,N)-Ph2PC2H4NMe 2]PtMe2 with an excess of H2SnBu2 or H2SnPh2 resulted in the
