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Developing new high-mobility polymeric semiconductors with good processability and excellent device environmental stability is essential for organic electronics. We report the synthesis, characterization, manipulation of charge carrier polarity, and device...
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...
Abstract An efficient synthetic method for the construction of trans-tetrahydrofuran (THF) unit from trans-1,5,9-decatriene was successfully developed by means of Sharpless AD reactions and oxidative cyclizations catalyzed by Co(modp)2 under an oxygen...
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The first total synthesis of spirobacillene A, an indole alkaloid isolated from Lysinibacillus fusiformis, is reported. A Lewis acid mediated spirocyclization of an anisole derivative onto a tethered ynone was used as a key step, drawing inspiration from a...
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....
The effectiveness of immobilization of functionalized carbon nanotubes into chitosan using different cross-linking agents has been evaluated. The cross-linkers used were glyoxal (GO), glutaraldehyde (GA), epichlorohydrin (ECH), and...
A new series of bile acid-based trioxanes 23a–d, 24a–d, 25a–d, 26a, 26b, and 26d have been synthesized and assessed for their antimalarial activity against multidrug-resistant Plasmodium yoelii in Swiss mice by oral route. The antimalarial activity of these...
Tanner et al. reported the silastannation reaction of several secondary terminal propargylic alcohols (protected and unprotected) with Pd2(dba)3•CHCl3/ Ph3P (1-2 equivalents of per Pd). Excellent regio and stereoselectivity (cis addition with tin always...
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 new synthetic route to 3,3′-dihalo BINAMs based on the direct halogenation of H 8 -BINAM and subsequent rearomatization to the binaphthyl core has been developed. The combination of this new procedure and Pd-catalyzed coupling reactions enabled us to...
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...
A series of novel monomers and polymers containing aromatic-donor and o-quinoid-acceptor units was prepared, and the relationship between their spectral and electrochemical properties and their structures was investigated. X-ray structure analyses of the...
Abstract: We reported a straightforward, three step synthesis of 3,3-difluorocyclobutane carboxylic acid.
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Compound 1 (PNU-95666E) is a selective and high-affinity agonist at the dopamine D 2 receptor subtype and is of interest as a potential agent for the treatment of Parkinson's disease. Requiring a synthetic route amenable to scale-up, a synthesis of this...
Highly chemoselective direct reduction of primary, secondary, and tertiary amides to alcohols using SmI 2 /amine/H 2 O is reported. The reaction proceeds with C–N bond cleavage in the carbinolamine intermediate, shows excellent functional group tolerance, 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...