Showing papers in "Tetrahedron Letters in 2016"
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TL;DR: In this article, a review of bulk heterojunction organic solar cell (BHJ OSC) devices, structures, working principle, device characterization, perovskite type solar cell, and studies of the photovoltaic performance of carbazole based derivatives such as 2,7-carbazole, indolo[3,2- b ] carbazoles containing donors (D) coupled with various acceptors (A) namely benzothiadiazole, thiazolothiazoles, diketopyrrolopyrrole, and qu
177 citations
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TL;DR: The asymmetric Biginelli reaction as discussed by the authors involves acid-catalyzed one-pot synthesis of 3,4-dihydropyrimidin-2(1H)-ones (DHPMs) using easily accessible starting materials, namely, aldehyde, active methylene compound and (thio)urea.
166 citations
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TL;DR: A review of recent advances in trifluoromethylthiolation using nucleophilic reagents is presented in this paper, highlighting some of the most intriguing examples of the synthesis of triffluorometthylthio-containing compounds using novel reagents.
126 citations
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TL;DR: In this article, a mini-review of recent research advances on transition-metal (Pd, Ni) catalyzed C(sp3)H functionalization via bidentate directing group coordination is presented.
114 citations
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TL;DR: In this article, the authors reviewed various significant pathways of catalytic lignin oxidation and also discussed strengths and weaknesses between different Lignin oxide routes reported in the recent literature.
96 citations
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TL;DR: In this paper, recent advances in the filed of direct C-H functionalization of aromatics and heteroaromatics through nucleophilic displacement of hydrogen in an aromatic ring are discussed.
76 citations
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TL;DR: In this article, the authors highlight the emergence of the directed metal-free arylation approach employing simple sulfoxide and hypervalent aryliodane, characterized by an unusual, and synthetically attractive, retention of the reduced −SR and iodine fragment ortho to the newly formed C C bond.
68 citations
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TL;DR: In this paper, the authors summarized the dual transition metal-visible light photoredox catalytic processes including arylation, alkynylation, alkenylation and cyclization.
66 citations
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TL;DR: In this paper, the TFBen was used as a non-reacting CO source for carbonylation reactions in the presence of Phloroglucinol (1,3,5-trihydroxybenzene) as a reusable material for TFBen synthesis.
65 citations
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TL;DR: An efficient and practical method for the chemoselective ipso-hydroxylation of arylboronic acids was demonstrated using urea-hydrogen peroxide under catalyst free condition at room temperature as discussed by the authors.
63 citations
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TL;DR: The diversity of dicarboxylic acid anhydrides employable in the Castagnoli-Cushman reaction (CCR) was traditionally thought to be limited to the classical succinic and glutaric anhides, as well as to its remarkably more reactive counterpart, homophthalic anhydride.
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TL;DR: An iodine-catalyzed regioselective sulfenylation of indoles in the presence of DMSO has been presented and the notable features include easy operation, metal-free reaction conditions, and excellent functional group tolerance.
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TL;DR: In this paper, recent advances of oxa-Michael reaction in the total synthesis of representative oxygen-containing natural products, involving macrolides, terpenoids, chromanones and chromanes, polyoxygenated molecules and alkaloids are discussed, with the aim of providing a complement to existing reviews.
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TL;DR: In this paper, 3S,7R,11R,15-phytanic acid (SRR) and 3R, 7R, 11R, 15-phytanic acid diastereomers were determined by GC-MS in extracts of archaeological ceramic.
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TL;DR: In this article, an overview on recent progress in catalyst system modifications to achieve regioselectivity in Tsuji-Wacker oxidation is given. But the influence of the substrate bearing directing group on Tsuji Wacker is briefly described.
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TL;DR: In this article, a one-pot synthesis of 2-amino-3-cyanopyridine derivatives has been demonstrated through the multicomponent reaction of aldehydes, ketones, malononitrile, and ammonium acetate using graphene oxide as a heterogeneous catalyst in water as a green medium.
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TL;DR: In this article, a set of tools (ruthenium, C-H bonds, directing groups) are presented for the tailored formation of new C-C and C-heteroatom bonds.
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TL;DR: In this paper, the regeneration of the active catalyst was possible by means of reagents that reduce in situ the phosphine oxide formed during the reaction, and the results on newly developed phosphine-catalyzed reactions were summarized.
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TL;DR: In this paper, a colorimetric and fluorescent dual probe for CO detection was designed and synthesized, which is capable of sensitive and specific detection of CO with naked-eye through colourimetric assay in phosphate buffer from colorless to yellow.
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TL;DR: In this article, a simple one-step hydrothermal process was used to obtain TiO 2 /MoS 2 nanocomposite photocatalyst with high activity toward the thiocyanation of indoles under visible light irradiation at room temperature.
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TL;DR: In this paper, the authors describe a highly efficient and eco-friendly protocol for the synthesis of benzimidazoles, benzothiazoles, and quinoxalines using VOSO4 as a catalyst in ethanol.
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TL;DR: In this paper, a convenient methodology has been developed for palladium catalyzed Sonogashira cross-coupling reaction under mild and green reaction conditions, in the absence of any organic or inorganic base, ligand and copper salt with excellent yield of cross coupled product.
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TL;DR: In this article, a simple Schiff base L derived from 2-hydroxy-naphthalene-1-carbaldehyde and benzene 1,2-diamine, was proved to be a turn-on fluorescent probe for the recognition of Al 3+, based on photoinduced electron transfer (PET) mechanism.
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TL;DR: In this article, the authors summarized the recent advances in the catalytic enantioselective 1,2-alkynylation of carbonyls and imines, including poorly reactive α-ketoesters and α -ketimine esters.
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TL;DR: In this article, a simple, efficient, and environmentally friendly approach has been developed for the synthesis of peptides in aqueous medium, where peptides are easily synthesized in water extract of banana (WEB)/ethylene glycol and without using external base under mild condition.
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TL;DR: Two isomeric Schiff bases fluorescence sensors (PIC1 and PIC2) based on phenanthro[9,10-d]imidazole-coumarin derivatives were designed, synthesized and characterized, which both represented the selective ‘turn-off’ fluorescence phenomenon caused by paramagnetic quenching effect of Fe3+ with the formation of 1:1 sensor-Fe complexes in DMF/HEPES aqueous buffer (7:3, v/v, 10mM, pH = 7.4) RE
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TL;DR: Copper oxide supported palladium nanoparticles have been used as a separable catalyst for the cyanation of a range of aryl iodides and bromides under ligand-free conditions as mentioned in this paper.
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TL;DR: In this paper, the catalytic activity of Glu-Fe3O4-SO3H was evaluated for three acid catalyzed reactions: etherification of 5-hydroxymethylfurfural (5-HMF), dehydration of sorbitol to isosorbide, and esterification of fatty acids with good yields and selectivity.
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TL;DR: An efficient and simple VO(acac)2-catalyzed approach to the synthesis of quinazolinones has been developed in this paper, which can also be scaled up.
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TL;DR: The binding association constant (Ka) of FLPY for Cu2+ based on a 1:1 stoichiometry was estimated to be 1.29 × 104 m−1 in the solution as mentioned in this paper.