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When the trimethyl derivatives of aluminium, gallium and indium react with glyoximato metallates, (R2C2N2(O)OH)2MetII (R = H, CH3; MetII = Ni, Pd, Pt, Cu), in a molar ratio, 2 mol of methane are evolved and monomeric bis(dimethylmetal(III)glyoximato)metallates(II) (metal(III) = Al, Ga, In) are formed in high yields. The vibrational and NMR spectra of the new complexes were measured and were partly resolved. The X-ray structure determinations of two of these compounds show non-planar structures of approximate C2h and C2 symmetry, respectively, with weak metal(III)?metal(II) π-interactions. 相似文献
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The total syntheses of (±)α- and β-dihydrocleavamines, (±)-16-methoxycarbonyldihydro-cleavamine, (±)-coronaridine, (±)-dihydrocatharanthine, (±)-ibogamine, (±)-epi-ibogamine and (±)-catharanthine are described. 相似文献
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Total syntheses of (+)-cytisine, (-)-kuraramine, (-)-isokuraramine, and (-)-jussiaeiine A were achieved via a samarium diiodide-promoted reductive deamination reaction, followed by simultaneous recyclization of a proline derivative to give the corresponding delta-lactam derivative, as a key step. 相似文献
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A. Latha N. Elangovan K.P. Manoj M. Keerthi K. Balasubramani S. Sowrirajan S. Chandrasekar Renjith Thomas 《印度化学会志》2022,99(7):100540
The tin complex di (p-chlorobenzyl) (dibromo) (1, 10-phenanthroline) tin (IV) (4CLBR) was synthesised and subjected to characterization using spectroscopic techniques like FT-IR, Raman, 1HNMR, 13CNMR, 119SnNMR, and crystallography. DFT method was used to compare theoretical and experimental results, and the theoretical method was done by the B3LYP/LanL2DZ. The VEDA programme package was used to design the entire vibrational spectral investigation. The Multiwfn software package was used to calculate the quantum chemical equations. A 2D network (C–H–Cl (C–Cl–H-benzyl, interactions forming a 2D network) and hydrogen bonding formed by bromine atoms such as C–H–Br (Sn–Br–H-Phen) were confirmed by X-rays as the complex and crystallisation. The crystal structure of the complex 4CLBR reveals that the tin atom is in a regular octahedral configuration. At the end of the day, anticancer activity has been investigated in this complex using a variety of cell lines, including PC3 (human prostate cancer cell), MCF7 (breast cancer cell), U937 (blood cancer cell), and U87 (brain cancer cell). The anticancer activity results clearly show that the complex 4CLBR and cisplatin have the same anticancer activity at concentrations of 15.6 g/ml against the U87 cell line. 相似文献
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J. V. Hanna S. W. Ng 《Acta Crystallographica. Section C, Structural Chemistry》1999,55(4):IUC9900029-IUC9900029