References of "Tetrahedron Letters"
     in
Bookmark and Share    
Full Text
Peer Reviewed
See detailOne-pot, Pd/Cu-catalysed synthesis of alkynyl-substituted 3-ylidene-dihydrobenzo[d]isothiazole 1,1-dioxides
Etse, Koffi Senam ULiege

in Tetrahedron Letters (2017), 58(8), 789793

Enyne-substituted benzoisothiazole derivatives have been synthesised under one-pot, operationally simple conditions using 2-iodo-N-(trimethylsilylethynyl)benzenesulfonamides and terminal alkynes as ... [more ▼]

Enyne-substituted benzoisothiazole derivatives have been synthesised under one-pot, operationally simple conditions using 2-iodo-N-(trimethylsilylethynyl)benzenesulfonamides and terminal alkynes as starting materials and a palladium–copper-based catalytic system. The structure of these heterocycles has been demonstrated by NMR spectroscopy and confirmed by X-ray crystallographic analysis. A plausible reaction mechanism has been proposed. [less ▲]

Detailed reference viewed: 31 (6 ULiège)
Full Text
Peer Reviewed
See detailDevelopment of solid-supported methodology for the preparation of peptidoglycan fragments containing (2S,6R)-diaminopimelic acid
Simon, Justine ULiege; Lamborelle, Nicolas ULiege; Zervosen, Astrid et al

in Tetrahedron Letters (2016)

Herein, we describe the development of an efficient solid-supported methodology for the stereoselective synthesis of two peptides containing (2S,6R)-diaminopimelic acid, (S)-Ala-γ-(R)-Glu-(2S,6R)-A2pm-(R ... [more ▼]

Herein, we describe the development of an efficient solid-supported methodology for the stereoselective synthesis of two peptides containing (2S,6R)-diaminopimelic acid, (S)-Ala-γ-(R)-Glu-(2S,6R)-A2pm-(R)-Ala 1 and γ-(R)-Glu-(2S,6R)-A2pm 2. The platform consists of a Wang resin anchored by an amino acid chain including allylglycine. By olefin cross metathesis with vinylglycine, unsaturated protected (2S,6R)-A2pm was fixed on solid support. Peptides were achieved by cleavage of cross metathesis products from resin, followed by reduction of double bonds along removing of protecting groups. Furthermore, this efficient solid phase approach will lead to peptide and muropeptide libraries. [less ▲]

Detailed reference viewed: 49 (15 ULiège)
Full Text
Peer Reviewed
See detailA Stereocontrolled Synthesis of the Hydrophobic Moiety of Rhamnolipids
Menhour, Boudjema; Mayon, Patrick; Plé, Karen et al

in Tetrahedron Letters (2015), 56

Detailed reference viewed: 89 (4 ULiège)
Full Text
Peer Reviewed
See detailNew benzotriazole-based reagents for the phosphonylation of various N-, O-, and S-nucleophiles
Panmanda, Deepak S.; Tiwari, Anand D.; Panda, S et al

in Tetrahedron Letters (2014)

Benzotriazole surrogates showing higher stabilities than the corresponding chlorophosphates, allow phosphonylation of a variety of N-, O-, and S-nucleophiles in good yields.

Detailed reference viewed: 13 (1 ULiège)
Full Text
Peer Reviewed
See detailA new and efficient one-pot synthesis of 2-hydroxy-1,4-dihydrobenzoxazines via a three-component Petasis reaction
Chouguiat, Louisa; Boulcina, Raouf; Carboni, Bertrand et al

in Tetrahedron Letters (2014), 55

Detailed reference viewed: 54 (3 ULiège)
Full Text
Peer Reviewed
See detailGreen synthesis and antioxidant activity of new PEGylated ferulic acids
Nicks, Francois ULiege; Richel, Aurore ULiege; Richard, Gaetan ULiege et al

in Tetrahedron Letters (2012), 53(19), 2402-2405

PEGylation of ferulic acid is described through a green esterification process involving poly(ethylene glycol) (PEG) with three different average molecular weights (200, 400 and 1000 g/mol) as both ... [more ▼]

PEGylation of ferulic acid is described through a green esterification process involving poly(ethylene glycol) (PEG) with three different average molecular weights (200, 400 and 1000 g/mol) as both reactive and solvent. Esterification with PEG400 and PEG1000 leads to original compounds soluble in all proportions in water. These new compounds display an antioxidant activity similar to that of ferulic acid. [less ▲]

Detailed reference viewed: 77 (11 ULiège)
Full Text
Peer Reviewed
See detailStraightforward hetero Diels-Alder cycloadditions of nitroso dienophiles by microreactor technology
Monbaliu, Jean-Christophe ULiege; Cukalovic, Ana; Marchand-Brynaert, Jacqueline et al

in Tetrahedron Letters (2010), 51

Detailed reference viewed: 21 (3 ULiège)
Full Text
Peer Reviewed
See detailNovel chiral 1-phosphono-1,3-butadiene for asymmetric hetero Diels-Alder cycloadditions with nitroso and azodicarboxylate dienophiles
Monbaliu, Jean-Christophe ULiege; Tinant, Bernard; Peeters, Daniel et al

in Tetrahedron Letters (2010), 51

Detailed reference viewed: 21 (0 ULiège)
Full Text
Peer Reviewed
See detailFast production of highly concentrated reactive [18F] fluoride for aliphatic and aromatic nucleophilic radiolabelling
Aerts, Joël ULiege; Voccia, Samuel; Lemaire, Christian ULiege et al

in Tetrahedron Letters (2010), 51

The use of a polymeric solid support loaded with a long alkyl chain quaternary ammonium allows the rapid and efficient recovery of cyclotron produced [18F]F- from [18O]water to a low water content organic ... [more ▼]

The use of a polymeric solid support loaded with a long alkyl chain quaternary ammonium allows the rapid and efficient recovery of cyclotron produced [18F]F- from [18O]water to a low water content organic solution compatible with fast nucleophilic labelling of most precursors for PET radiopharmaceuticals in high yield. [less ▲]

Detailed reference viewed: 126 (33 ULiège)
Full Text
Peer Reviewed
See detailMicrowave-assisted synthesis of D-glucuronic acid derivatives using cost-effective solid acid catalysts
Richel, Aurore ULiege; Laurent, Pascal ULiege; Wathelet, Bernard ULiege et al

in Tetrahedron Letters (2010), 51

Monomode microwave-assisted coupling of D-glucuronic acid with alcohols, in the presence of various impregnated acid catalysts, was successfully performed, affording in almost quantitative yields the ... [more ▼]

Monomode microwave-assisted coupling of D-glucuronic acid with alcohols, in the presence of various impregnated acid catalysts, was successfully performed, affording in almost quantitative yields the corresponding monosubstituted b-D-glucofuranosidurono-6,3-lactones in less than 10 min at 85°C. This study evidences the synergy of microwaves and impregnated acid catalysts as a fast and clean strategy in the field of carbohydrate chemistry. [less ▲]

Detailed reference viewed: 91 (28 ULiège)
Full Text
Peer Reviewed
See detailIs anthracene cofactor or spectator for the thermolysis of anthracenyl acylnitroso cycloadducts in the presence of a diene?
Monbaliu, Jean-Christophe ULiege; Marchand-Brynaert, Jacqueline; Peeters, Daniel

in Tetrahedron Letters (2009), 50

Detailed reference viewed: 14 (0 ULiège)
Full Text
Peer Reviewed
See detail(R)-4-phenyloxazolidin-2-thione: an efficient chiral auxiliary for [4+2] cycloaddition of 1-aminodienes and activated phosphonodienophiles
Monbaliu, Jean-Christophe ULiege; Robiette, Raphaël; Peeters, Daniel et al

in Tetrahedron Letters (2009), 50

Detailed reference viewed: 17 (0 ULiège)
Full Text
Peer Reviewed
See detail[4+2] Cycloaddition of 1-phosphono-1,3-butadiene with azo- and nitroso-heterodienophiles
Monbaliu, Jean-Christophe ULiege; Marchand-Brynaert, Jacqueline

in Tetrahedron Letters (2008), 49

Detailed reference viewed: 23 (4 ULiège)
Full Text
Peer Reviewed
See detailMicrowave-enhanced ruthenium-catalysed atom transfer radical additions
Borguet, Yannick ULiege; Richel, Aurore ULiege; Delfosse, Sbastien et al

in Tetrahedron Letters (2007), 48(36), 6334-6338

The first monomode microwave-assisted atom transfer radical additions (ATRA) of carbon tetrachloride to various olefins were successfully performed, affording the adducts with almost quantitative yields ... [more ▼]

The first monomode microwave-assisted atom transfer radical additions (ATRA) of carbon tetrachloride to various olefins were successfully performed, affording the adducts with almost quantitative yields in less than 10 min at 160 'C. (c) 2007 Elsevier Ltd. All rights reserved. [less ▲]

Detailed reference viewed: 57 (20 ULiège)
Full Text
Peer Reviewed
See detailElectrochemistry as a correlation tool with the catalytic activities in [RuCl2(p-cymene)(PAr3)]-catalysed Kharasch additions
Richel, Aurore ULiege; Demonceau, Albert ULiege; Noels, Alfred ULiege

in Tetrahedron Letters (2006), 47

[RuCl2(p-cymene)] complexes containing triarylphosphine ligands with various substituents at the para position were used to catalyse the atom transfer radical addition of carbon tetrachloride to various ... [more ▼]

[RuCl2(p-cymene)] complexes containing triarylphosphine ligands with various substituents at the para position were used to catalyse the atom transfer radical addition of carbon tetrachloride to various olefins, and their catalytic activities were nicely correlated with their electrochemical parameters. [less ▲]

Detailed reference viewed: 34 (7 ULiège)
Full Text
Peer Reviewed
See detailImidazol(in)ium carboxylates as N-heterocyclic carbene ligand precursors for Suzuki-Miyaura reactions
Tudose, Adriana; Delaude, Lionel ULiege; André, Benoît et al

in Tetrahedron Letters (2006), 47(48), 8529-8533

Simple catalysts formed in situ from palladium acetate and a variety of imidazolium and imidazolinium carboxylates and dithiocarboxylates have been screened in the coupling of aryl halides with trans-2 ... [more ▼]

Simple catalysts formed in situ from palladium acetate and a variety of imidazolium and imidazolinium carboxylates and dithiocarboxylates have been screened in the coupling of aryl halides with trans-2-phenylvinylboronic acid. Imidazol(in)ium carboxylates show an excellent activity, which compares to that displayed by the parent imidazol(in)ium chlorides, whereas imidazol(in)ium dithiocarboxylates are poorly efficient. Interestingly, the base employed exerts a profound influence on the trans/cis stereochemistry of the coupling product. (c) 2006 Elsevier Ltd. All rights reserved. [less ▲]

Detailed reference viewed: 57 (2 ULiège)
Full Text
Peer Reviewed
See detailFormation of upper rim acylated calix[4]arenes using a sacrifici al zinc anode
Louati, Alain; Vataj, Rame; Gabelica, Valérie ULiege et al

in Tetrahedron Letters (2005), 46(44), 7499-7502

A straightforward electrosynthetic method is described, which allows upper rim acylation of non-p-halogenated calix[4]-arenes. For example, a solution of tetrapropoxycalix[4]arene 4 was electrolysed in ... [more ▼]

A straightforward electrosynthetic method is described, which allows upper rim acylation of non-p-halogenated calix[4]-arenes. For example, a solution of tetrapropoxycalix[4]arene 4 was electrolysed in the presence of ZnBr2, in an undivided cell fitted with a sacrificial zinc anode using pure acetonitrile as solvent, yielding an organozinc species, which was then treated with acetyl chloride in the presence of a palladium catalyst to afford 5,11-diacety1-25,26,27,28-tetrapropoxycalix[4]arene 5 in ca. 35% yield after workup. (c) 2005 Elsevier Ltd. All rights reserved. [less ▲]

Detailed reference viewed: 94 (4 ULiège)
Full Text
Peer Reviewed
See detailStenotarsol, a new terpenoid from Stenotarsus subtilis (Coleoptera : Endomychidae)
Laurent, Pascal ULiege; Daloze, Désiré; Braekman, Jean-Claude et al

in Tetrahedron Letters (2005), 46(6), 931-932

Stenotarsol, a new terpenoid alcohol, has been isolated from the beetle Stenotarsus subtilis (Endomychidae). Its structure has been determined on the basis of its spectral properties. Compound 1 ... [more ▼]

Stenotarsol, a new terpenoid alcohol, has been isolated from the beetle Stenotarsus subtilis (Endomychidae). Its structure has been determined on the basis of its spectral properties. Compound 1 represents a new type of terpene skeleton and is the first secondary metabolite reported so far from this family of beetles. [less ▲]

Detailed reference viewed: 22 (1 ULiège)
Full Text
Peer Reviewed
See detailA Chemoselective Ligation For The Synthesis Of Amino Acid Derivatives Of Virginiamycin M-1
Nott, Katherine ULiege; Dufour, Samuel; Gossele, Francis et al

in Tetrahedron Letters (2005), 46(43),

Detailed reference viewed: 15 (5 ULiège)
Full Text
Peer Reviewed
See detailThe rational design of modified cinchona alkaloid catalysts. Application to a new asymmetric synthesis of chiral chromanes
Merschaert, Alain; Delbeke, Pieter; Daloze, Désiré et al

in Tetrahedron Letters (2004), 45(24), 4697-4701

A new asymmetric synthesis of 2-substituted chiral chromanes has been achieved. The key step is the intramolecular conjugate addition of a phenolic nucleophile on a alpha,beta-unsaturated ester catalyzed ... [more ▼]

A new asymmetric synthesis of 2-substituted chiral chromanes has been achieved. The key step is the intramolecular conjugate addition of a phenolic nucleophile on a alpha,beta-unsaturated ester catalyzed by Cinchona alkaloids. The high ee's obtained with cinchonine and its derivatives have been rationalized by ab initio quantum chemistry calculations of transition state structures. (C) 2004 Elsevier Ltd. All rights reserved. [less ▲]

Detailed reference viewed: 30 (0 ULiège)