Two mononuclear Re(v) complexes were synthesized using two different O, N, N coordinating Schiff base ligands. The X-ray structure and catalytic properties of the complexes are investigated and the electronic structure and absorption spectra were also...
A computational and conceptual density-functional study has been performed on various [3 + 1] complexes of both Re(V) and Tc(V). The fully optimized complexes chloro(3-thiapentane-1,5-dithiolato)oxorhenium(V) and...
Malonic acid derivatives undergo unusually mild decarboxylation when treated with N,N′-carbonyldiimidazole (CDI) at room temperature to generate the carbonyl imidazole moiety in high yield, which can be reacted further with a variety of nucleophiles in an...
With manganocenes as starting materials, stable mononuclear paramagnetic alkynyl and vinylidene and binuclear bis(vinylidene) and bis(carbyne) complexes with (RC 5 H 4 )Mn(dmpe) fragments (R = H, Me; dmpe = 1,2-bis(dimethylphosphino)ethane) have been prepared...
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We report the synthesis and characterization of a fluorescent probe (Hypo-SiF) designed for the detection of hypochlorous acid (HOCl) using a silicon analogue of fluorescein (SiF). The probe is regulated in an “off–on” fashion by a highly selective thioether...
Since 2‘-fluoro-5-methyl-β-l-arabinofuranosyluracil (l-FMAU) has been shown to be a potent anti-HBV agent in vitro, it was of interest to study the structure−activity relationships of related nucleosides. Thus, a series of...
Well-defined poly(2,7-fluorene) derivatives have been prepared through palladium-catalyzed couplings between various 9,9-disubstituted or 9-monosubstituted 2,7-dibromofluorenes and 2,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9,9-dioctylfluorene....
Mo(CO) 3 (NC-t-Bu) 3 was found to be a suitable catalyst for the regioselective hydrostannation of several types of alkynes, giving preferentially rise to the α-stannylated products. These products are not available under radical reaction conditions or by...
A solution-phase parallel method for the synthesis of 2-quinoxalinol salen ligands was designed and optimized. The synthesis begins with commercially available 1,5-difluoro-2, 4-dinitrobenzene (DFDNB) and employs a sequence of five straightforward and...
Alkylidenecyclopropanes readily convert into cyclobutene derivatives on treatment with catalytic amounts of PtCl 2 . The reaction is strongly accelerated when performed under an atmosphere of CO (1 atm). The resulting cyclobutenes are isolated in good to...
An environmentally benign and highly catalyst-substrate controlled synthesis of 1,2-disubstituted and 2-substituted benzimidazoles with outstanding selectivity has been developed through grinding a mixture ofo -phenylenediamines, suitable aldehydes and an...
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