32358-94-4Relevant academic research and scientific papers
Design and Syntheses of Palladium Complexes of NNN/CNN Pincer Ligands: Catalyst for Cross Dehydrogenative Coupling Reaction of Heteroarenes
Shinde, Vikki N.,Bhuvanesh, Nattamai,Kumar, Anil,Joshi, Hemant
, p. 324 - 333 (2020/02/04)
This report describes simple syntheses of a new class of palladium(II) pincer complexes having NNN and CNN coordination modes. The new complexes were fully characterized with the help of 1H and 13C{1H} NMR, HRMS, and IR sp
Palladium-catalysed direct C-H activation/arylation of heteroaromatics: An environmentally attractive access to bi- or polydentate ligands
Derridj, Fazia,Gottumukkala, Aditya L.,Djebbar, Safia,Doucet, Henri
experimental part, p. 2550 - 2559 (2009/03/11)
Bi- or polydentate ligands based on heterocycles can be easily prepared by palladium-catalysed C-H bond activation of heteroaromatics followed by heteroarylation with heteroaryl bromides. A variety of heteroaromatics such as furans, thiophenes, pyridines, thiazoles or oxazole derivatives have been employed and moderate to good yields were generally obtained using the air-stable complex [PdCl(dppb)(C3H5)] as catalyst. A range of functions such as acetyl, formyl, ester or nitrile on the heteroaromatics is tolerated. Wiley-VCH Verlag GmbH & Co. KGaA, 2008.
Controlling stereochemical outcomes of asymmetric processes by catalyst remote molecular functionalizations: Chiral diamino-oligothiophenes (DATs) as ligands in asymmetric catalysis
Albano, Vincenzo Giulio,Bandini, Marco,Barbarella, Giovanna,Melucci, Manuela,Monari, Magda,Piccinelli, Fabio,Tommasi, Simona,Umani-Ronchi, Achille
, p. 667 - 675 (2007/10/03)
The synthesis, characterization, and structure-guided application of a new class of highly versatile chiral C2-symmetric diamine-oligothiophene ligands in Pd-catalyzed asymmetric transformations are presented. Experimental investigations of the
Poly(α-vinyl-ω-alkyloligothiophene) side-chain polymers, synthesis, fluorescence, and morphology
Melucci, Manuela,Barbarella, Giovanna,Zambianch, Massimo,Benzi, Mario,Biscarini, Fabio,Cavallini, Massimiliano,Bongini, Alessandro,Fabbroni, Serena,Mazzeo, Marco,Anni, Marco,Gigli, Giuseppe
, p. 5692 - 5702 (2007/10/03)
The synthesis of polyvinyl polymers by radical polymerization of a-vinyl-cu-alkyl-terminated thiophene and bi-, ter-, and quaterthiophenes is reported. The photoluminescence properties of the polymers in solution and in thin film are described. In thin film, self-assembly-induced white photoluminescence was observed for poly(5-vinyl-5?-hexylquaterthiophene). For this polymer, single crystals with rectangular shape and micrometer size were obtained by drop casting from CS2. MM3 calculations on model diads and triads indicate that, on increasing the size of the side groups, van der Waals interactions promote the stacking of the pendants on the same side of the polyvinyl chain.
Photochemical reactions of Thienyl-, Bithienyl-, Terthienyl- and Thienylaroyl-methanols
Krishnaswamy, N. R.,Kumar, Ch. Siva Sai Kamana,Prasanna, S.
, p. 1801 - 1830 (2007/10/02)
Photochemical reactions of some thienyl-, bithienyl-, terthienyl- and thienylaroyl-methanols were studied in the neat state as well as in solvents like methanol and benzene.The terthienylmethanols were found to be susceptible to photo-sensitized oxidation which was inhibited by singlet oxygen quenchers.The photoproducts were isolated, characterised by spectroscopic methods and in some cases by synthesis.
Synthesis of Naturally Occurring Bithiophenes: A Photochemical Approach
D'Auria, M.,Mico, A. De,D'Onofrio, F.,Piancatelli, G.
, p. 5243 - 5247 (2007/10/02)
A photochemical approach to the synthesis of six naturally occurring bithiophenes is described.The irradiation of 5-iodo-2-tiophenecarbaldehyde (3) in the presence of 2-bromothiophene (4) or 2-methylthiophene (15) furnishes 5-bromo- (5) and 5-methyl-2,2'-bithiophene-5'-carbaldehyde (16) in 99 and 69 percent yields respectively> Compounds 5 and 16 are used in the synthesis of 5-(1-propynyl)-2,2'-bithiophene-5'-methanol (7),5'-propynyl-2,2'-bithiophene-5-carbaldehyde (8), 5-ethynyl-5'-(1-propynyl)-2,2'-bithiophene (9), 5-ethenyl-5'-(1-propynyl)-2,2'-bithiophene (11),5'--5--2,2'-bithiophene (14), and 5-methyl-5'--2,2'-bithiophene (17) through known reactions.In particular, the most important synthetic methodology used in an alkynylation procedure accomplished in the presence of Pd(0) in phase-transfer conditions.
