Search Within
Applied Filters:
Showing 1-30 of 32 results for "


" within Papers
Sort by Relevance
Zhaoyang Liu et al.
Molecules (Basel, Switzerland), 18(3), 3107-3117 (2013-03-09)
A donor-acceptor (D-A) type indoline dye, D149, was used as an electron donor in solution-processed organic solar cells (OSCs). For bulk-heterojunction (BHJ) type OSCs with PC70BM as electron acceptor, the power conversion efficiency (PCE) is sensitive to the amount of
Long Wang et al.
Chemical communications (Cambridge, England), 49(33), 3458-3460 (2013-03-20)
Highly functionalized spiro[γ-butyrolactone-pyrrolidin-3,3'-oxindole] tricyclic skeletons were delivered successfully with high optical purity using an effective yet simple procedure.
Kamalkishor P Landge et al.
The Journal of organic chemistry, 77(13), 5705-5713 (2012-06-08)
An effective method of constructing the indoline moiety via intramolecular nucleophilic ring closure of a diaryliodonium salt is described. Diacetoxyiodoarene compounds (1a-1e) were converted into intermediate Koser's reagent and coupled with arylstannanes (7-10) to form diaryliodonium salts (11a-14e). Indoline compounds
Rodolphe Beaud et al.
Angewandte Chemie (International ed. in English), 51(50), 12546-12550 (2012-11-06)
IRONic electrophilic indoles! The C3-regioselective hydroarylation of N-acetyl indoles with aromatic nucleophiles mediated by FeCl(3) features a rare example of the electrophilic reactivity of the indole core in a Friedel-Crafts reaction. This indole umpolung allows us straightforward access to the
María López-Iglesias et al.
The Journal of organic chemistry, 77(18), 8049-8055 (2012-08-25)
Racemic indolines including a variety of structural motifs such as C-2 and C-3 substitutions (alkyl or aryl), cis/trans relative stereochemistry and functionalization of the aromatic ring (fluoro, methyl or methoxy groups) have been efficiently prepared through Fischer indolization and subsequent
San N Khong et al.
Molecules (Basel, Switzerland), 17(5), 5626-5650 (2012-05-15)
The bisphosphine-catalyzed double-Michael addition of dinucleophiles to electron-deficient acetylenes is an efficient process for the synthesis of many nitrogen-containing heterocycles. Because the resulting heterocycles contain at least one stereogenic center, this double-Michael reaction would be even more useful if an
Wen-Bing Qin et al.
Organic & biomolecular chemistry, 10(44), 8814-8821 (2012-10-10)
A simple, convenient and efficient metal-free catalyzed oxidative trimeric reaction of indoles toward a variety of 2-(1H-indol-3-yl)-2,3'-biindolin-3-one derivatives in moderate to excellent yields has been developed. This transformation proceeds via a tandem oxidative homocoupling reaction by using TEMPO in air
Toshiharu Noji et al.
Organic letters, 15(8), 1946-1949 (2013-04-04)
A benzyne-mediated synthesis of substituted indolines and carbazoles was developed. The reaction includes generation of benzyne using Mg(TMP)2·2LiCl as a base, cyclization, and trapping the resulting organomagnesium intermediate with an electrophile to provide a series of substituted indolines and carbazoles
Hiroshi Kohara et al.
Biomaterials, 34(4), 1024-1032 (2012-11-14)
Dye efflux assay evaluated by flow cytometry is useful for stem cell studies. The side population (SP) cells, characterized by the capacity to efflux Hoechst 33342 dye, have been shown to be enriched for hematopoietic stem cells (HSCs) in bone
Gang He et al.
Organic letters, 14(12), 2944-2947 (2012-06-08)
An efficient method has been developed for the synthesis of indoline compounds from picolinamide (PA)-protected β-arylethylamine substrates via palladium-catalyzed intramolecular amination of ortho-C(sp(2))-H bonds. These reactions feature high efficiency, low catalyst loadings, mild operating conditions, and the use of inexpensive
Jennifer X Qiao et al.
Journal of medicinal chemistry, 56(22), 9275-9295 (2013-10-30)
Preclinical antithrombotic efficacy and bleeding models have demonstrated that P2Y1 antagonists are efficacious as antiplatelet agents and may offer a safety advantage over P2Y12 antagonists in terms of reduced bleeding liabilities. In this article, we describe the structural modification of
Oktay Talaz et al.
Bioorganic & medicinal chemistry, 21(6), 1477-1482 (2012-11-06)
Several 1,4-bis(indolin-1-ylmethyl)benzene-based compounds containing substituents such as five, six and seven cyclic derivatives on indeno part (9a-c) were prepared and tested against two members of the pH regulatory enzyme family, carbonic anhydrase (CA). The inhibitory potencies of the compounds at
Janice L Hyatt et al.
Journal of medicinal chemistry, 50(8), 1876-1885 (2007-03-24)
Carboxylesterases (CE) are ubiquitous enzymes thought to be responsible for the metabolism and detoxification of xenobiotics. Numerous clinically used drugs including Demerol, lidocaine, capecitabine, and CPT-11 are hydrolyzed by these enzymes. Hence, the identification and application of selective CE inhibitors
Ping-Xin Zhou et al.
Chemical communications (Cambridge, England), 49(31), 3254-3256 (2013-03-14)
Isoindolines are synthesized by palladium-catalyzed coupling reaction of N-(2-iodobenzyl) anilines with α,β-unsaturated N-tosylhydrazones. The reaction has several potential advantages: (1) toleration of a wide range of functional groups, (2) easy to handle and with mild conditions, (3) enriches the isoindoline
Shigeo Hayashi et al.
European journal of medicinal chemistry, 55, 228-242 (2012-08-18)
Since the discovery of endogenous nociceptin/orphanin FQ (N/OFQ) peptide and N/OFQ peptide (NOP) receptor [or opioid-receptor-like-1 (ORL1) receptor], the structures, distribution, and pharmacology have been reported in detail. N/OFQ and NOP receptor are located in the corticolimbic regions that are
Jessica D Podoll et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(39), 15573-15578 (2013-09-11)
The continuous emergence of resistant bacteria has become a major worldwide health threat. The current development of new antibacterials has lagged far behind. To discover reagents to fight against resistant bacteria, we initiated a chemical approach by synthesizing and screening
Ke Chen et al.
Organic & biomolecular chemistry, 10(32), 6600-6606 (2012-07-17)
A palladacycle-catalyzed tandem Heck-intramolecular aza-Michael reaction protocol has been developed for the one-pot synthesis of 1-substituted isoindolines from N-unprotected 2-bromobenzylamines and acrylates with high yields.
A diversity-oriented approach to spiroindolines: post-Ugi gold-catalyzed diastereoselective domino cyclization.
Sachin G Modha et al.
Angewandte Chemie (International ed. in English), 51(38), 9572-9575 (2012-08-22)
Matej Baláž et al.
Molecules (Basel, Switzerland), 24(18) (2019-09-22)
Performing solution-phase oximation reactions with hydroxylamine hydrochloride (NH2OH·HCl) carries significant risk, especially in aqueous solutions. In the present study, four N-substituted indole-3-carboxaldehyde oximes were prepared from the corresponding aldehydes by solvent-free reaction with NH2OH·HCl and a base (NaOH or Na2CO3)
Matthias Schwarz et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 23(59), 14806-14818 (2017-08-18)
Indole derivatives were recently proposed as potential liquid organic hydrogen carriers (LOHC) for storage of renewable energies. In this work, we have investigated the adsorption, dehydrogenation and degradation mechanisms in the indole/indoline/octahydroindole system on Pt(111). We have combined infrared reflection
François Brucelle et al.
Organic letters, 14(12), 3048-3051 (2012-06-01)
A simple approach to prepare indolines and benzopyrrolizidinones from ortho-azidoallylbenzenes via a tandem radical addition/cyclization is described. The use of triethylborane to initiate and sustain the process provides the best results. Indolines are easily converted into the corresponding indoles by
Kohei Watanabe et al.
BMC neuroscience, 13, 101-101 (2012-08-17)
Successful delivery of compounds to the brain and retina is a challenge in the development of therapeutic drugs and imaging agents. This challenge arises because internalization of compounds into the brain and retina is restricted by the blood-brain barrier (BBB)
Jan Michael Schuller et al.
Journal of molecular biology, 422(1), 87-99 (2012-06-12)
Fungal indole prenyltransferases (PTs) typically act on specific substrates, and they are able to prenylate their target compounds with remarkably high regio- and stereoselectivity. Similar to several indole PTs characterized to date, the cyclic dipeptide N-prenyltransferase (CdpNPT) is able to
Fengtao Zhou et al.
Journal of the American Chemical Society, 134(35), 14326-14329 (2012-08-24)
The first highly enantioselective copper-catalyzed intramolecular Ullmann C-N coupling reaction has been developed. The asymmetric desymmetrization of 1,3-bis(2-iodoaryl)propan-2-amines catalyzed by CuI/(R)-BINOL-derived ligands led to the enantioselective formation of indolines in high yields and excellent enantiomeric excesses. This method was also
Lei Zhao et al.
Organic letters, 14(8), 2066-2069 (2012-04-03)
An efficient construction of fused indolines with a 2-quaternary center through a palladium-catalyzed intramolecular Heck reaction of N-(2(2-halobenzoxyl)-2,3-disubstituted indoles is disclosed. This protocol provided a straightforward access to diverse fused indolines with good functional group tolerance.
Shaolin Zhu et al.
Journal of the American Chemical Society, 134(26), 10815-10818 (2012-06-22)
An enantioselective arylation-cyclization cascade has been accomplished using a combination of diaryliodonium salts and asymmetric copper catalysis. These mild catalytic conditions provide a new strategy for the enantioselective construction of pyrroloindolines, an important alkaloid structural motif that is commonly found
Lu Wang et al.
Organic letters, 14(15), 3978-3981 (2012-07-27)
3-Acylindoles undergo nucleophilic-type reactions with Grignard reagents to efficiently afford either cis- or trans-substituted indolines, depending on the different quenching procedures. The enolate intermediate could be trapped by aryl acyl chlorides to provide indolines bearing a quaternary carbon center with
Magesh Muthu et al.
Journal of biomedical nanotechnology, 11(9), 1608-1627 (2015-10-22)
The triple negative breast cancer (TNBCs) and non-small cell lung cancers (NSCLCs) often acquire mutations that contribute to failure of drugs in clinic and poor prognosis, thus presenting an urgent need to develop new and improved therapeutic modalities. Here we
Somnath Jana et al.
Organic letters, 15(17), 4426-4429 (2013-08-21)
The generation of indolines and benzofurans from the combination of Suzuki-Miyaura coupling reactions with oxidative cyclizations is described.
Manas K Ghorai et al.
The Journal of organic chemistry, 78(8), 3867-3878 (2013-04-04)
A practical approach for the synthesis of 3-substituted indolines via regio- and stereoselective SN2-type ring-opening of 2-(2-halophenyl)-N-tosylaziridines with heteroatomic nucleophiles (O, N, and S) followed by palladium-catalyzed intramolecular C-N cyclization is reported in excellent yields (up to >99%) and enantiomeric
Page 1 of 2
Page 1 of 2