Search Results - "Warrener, Ronald N"
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Probing the dimensions of semi-rigid inner functionalised U-shaped bis-porphyrin cavities
Published in Organic & biomolecular chemistry (01-01-2006)“…The synthesis of a series of open U-shaped bis-porphyrin cavity molecules is described, with bridged bicyclic backbones to confer rigidity, and a pendant…”
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Porphyrin-Containing Molecular Capsules: Metal Mediated Dimerization of a Bis-Porphyrin Cavity
Published in Organic letters (27-06-2002)“…A self-complementary V-shaped bis-porphyrin cavity has been synthesized that is capable of dimerization to form a capsule structure. Self-assembly of the dimer…”
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Container Systems II: An Experimental Study of the High-Pressure Intramolecular Cycloaddition of Tethered Furans and Anthracenes onto Norbornane Cyclobutene-1,2-diesters
Published in Journal of heterocyclic chemistry (01-09-2014)“…A new class of container molecules is described and the first steps in producing protypes are reported. Central to the approach is the formation of…”
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High pressure promoted exchange of guests from hemicarceplexes
Published in Tetrahedron (28-01-2015)“…Application of extremely high pressures on dimethylacetamide (DMA) hemicarceplexes promotes DMA extrusion and replacement with a solvent molecule at room…”
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Dipolar Cycloaddition Reactions of Azomethine Ylides Generated by endocyclic-exocyclic 1,3-dipole Rearrangement
Published in Journal of heterocyclic chemistry (01-09-2015)“…Dipolar cycloaddition of polycyclic azomethine ylides, in which the central nitrogen atom is part of a pyrrolidine ring and bears a methoxycarbonyl group with…”
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Tetrakis-(N-pyrrolyl)methane: Structurally Important Member of the C(NR2)4 Family
Published in Journal of heterocyclic chemistry (01-07-2015)“…The structural motif C(NR2)4 is rare in chemistry. The formation, NMR spectroscopic characteristics, and X‐ray structure are reported for a structurally…”
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Exceptionally Pyramidalized Olefins: A Theoretical Study of the Cyclopropenyl Fused Tricycles Tricyclo[3.2.1.02,4]oct-2(4)-ene, Tricyclo[3.2.1.02,4]octa-2(4),6-diene, Tricyclo[3.2.2.02,4]non-2(4)-ene, and Tricyclo[3.2.2.02,4]nona-2(4),6-diene
Published in Journal of organic chemistry (28-01-2000)“…RHF, MP2, and TCSCF ab initio theory and B3LYP, B3PW91, and SVWN density functional theory were used to study the series of cyclopropenyl-fused tricycles 9−12…”
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A cascade thermal isomerisation of cyclobutane di-(carbomethoxy) Δ2-1,2,3-triazolines with intramolecular 1,3-dipolar cycloreversion as the key step
Published in Tetrahedron (22-04-2012)“…Unprecedented thermal isomerisation of the strained Δ2-1,2,3-triazolines led to the formation of products possessing a novel 1,2,7-triaza-[3.3.0]octa-2-ene…”
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Ninhydrin as a building block in scaffold-linked chromophoric dyad construction
Published in ARKIVOC (01-08-2014)Get full text
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Domino Diels–Alder reactions of N-methoxyethyl-7-oxa-norbornadiene-2,3-dicarboximide: an elusive, highly reactive dienophile
Published in Tetrahedron (25-02-2011)“…Flash vacuum pyrolysis (FVP) has been used to generate the novel 7-oxa-norbornadiene-2,3-dicarboxylic imide that in situ gave an unprecedented cycloaddition…”
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High-level Computational Study of the Site-, Facial- and Stereoselectivities for the Diels-Alder Reaction Between o-Benzoquinone and Norbornadiene
Published in Molecules (Basel, Switzerland) (01-12-2000)“…Ab initio and DFT quantum chemical calculations have been applied to a study of the Diels-Alder reaction of o-benzoquinone as diene and norbornadiene as…”
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Synthesis of bis-peptides attached on poly[n]norbornene molecular scaffolds with well-defined relative positions and distances
Published in Molecular diversity (01-05-2011)“…This article describes novel synthetic approaches to polynorbornene molecular scaffolds substituted with peptides at various, well-defined positions. A library…”
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New Adventures in the Synthesis of Hetero-Bridged syn-Facially Fused Norbornadienes ("[n]Polynorbornadienes") and Their Topological Diversity
Published in European journal of organic chemistry (01-10-2000)“…Molecular Scaffolds formed by the linking of bicyclo[2.2.1]heptane (norbornane) subunits by sharing a common C2‐bridge have great appeal to the molecular…”
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Molecular Recognition of DNA by Rigid [n]-Polynorbornane-Derived Bifunctional Intercalators: Synthesis and Evaluation of Their Binding Properties
Published in Journal of medicinal chemistry (17-05-2007)“…We have exploited the concept of multivalency in the context of DNA recognition, using novel chemistry to synthesize a new type of bis-intercalator with…”
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7-(1-Acetoxymethylidene)Benzonorbornadiene: A Versatile Reagent for the Synthesis of 7-Formyl and 7-Hydroxymethyl Benzonorbornadienes
Published in Molecules (Basel, Switzerland) (01-03-2001)“…7-(1-Acetoxymethylidene)benzonorbornadiene 3, prepared in one step by the addition of benzyne to 6-acetoxyfulvene 2, is hydrolysed in acid solution to form a…”
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Pyramidalized Olefins: A DFT Study of the Homosesquinorbornene and Sesquibicyclo[2.2.2]octene Nuclei
Published in Journal of organic chemistry (28-11-2003)“…Density functional theory (B3LYP/6-31G*) was used to study a series of homosesquinorbornenes and sesquibicyclo[2.2.2]octenes. The compounds in which the two…”
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A building BLOCK approach to bis-porphyrin cavity systems with convergent and divergent wall orientations
Published in Tetrahedron (22-04-2002)“…Porphyrin containing molecular building blocks have been linked together using s-tetrazine or 1,3-dipolar coupling protocols to yield bis-porphyrin cavities of…”
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An AM1 semiempirical study of host-guest complexation in hemicarcerand complexes
Published in Journal of computational chemistry (01-03-2004)“…Semiempirical AM1 calculations have been carried out on host–guest complexes of model hemicarcerands 1a and 2a. The justification for the choice of the AM1…”
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syn-Facial hetero-bridged [ n]polynorbornanes: a new class of polarofacial framework molecules composed of fused 7-oxa- and 7-azanorbornanes
Published in Tetrahedron (01-01-2001)“…New oxygen-bridged norbornane-fused cyclobutene epoxides and bis-(cyclobutene epoxides) are described and shown to react stereoselectively with…”
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New and improved ‘LEGO’ BLOCK protocols for the direct synthesis of hydrophilic ribbon molecules with acid, ester or peptide functionality
Published in Tetrahedron letters (12-06-2000)“…Hydrophilic ribbon molecules are produced directly from the reaction of cyclobutene epoxide BLOCKs with norbornene dipolarophiles or indirectly by chemical…”
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