Papers

With Tag: General Chemistry

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Organotin polymers as components for marine anti-fouling paints

Andrew John Tate
1982

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Political Writings: Extracts from the Histoire des Deux Indes

1992 | 10.1017/CBO9781139168052.008

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Global greenhouse studies: Need for a new approach to ecosystem manipulation

Critical Reviews in Plant Sciences | 1992

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Three dimensional modelling of chlorine activation in the Arctic stratosphere

Geophysical Research Letters | 1994 | 10.1029/93GL03048

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Temperature-Induced Reversible Dominoes in Carbon Nanotubes

Zhengrong Guo, Tienchong Chang
Nano Lett. | 2010 | 10.1021/nl101623c

We show by molecular dynamics simulations that there exists a reversible domino process in single walled carbon nanotubes (SWCNTs). SWCNTs with one end collapsed and the other circular are chosen for demonstration. At a low temperature, the collapsed zone...

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Hidden One-Electron Interactions in Carbon Nanotubes Revealed in Graphene Nanostrips

Junwen Li, Carter T. White, Daniel Gunlycke, John W. Mintmire
Nano Lett. | 2007 | 10.1021/nl0627745

Many single-wall carbon nanotube (SWNT) properties near the Fermi level were successfully predicted using a nearest-neighbor tight-binding model characterized by a single parameter, V 1 . We show however that this model fails for armchair-edge graphene...

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Structural Transformations of Carbon Nanotubes under Hydrostatic Pressure

Steven G. Louie, Catalin D. Spataru, Rodrigo B. Capaz, Paul Tangney, Marvin L. Cohen
Nano Lett. | 2005 | 10.1021/nl051637p

We used simulations with a classical force field to study the transformation under hydrostatic pressure of isolated single-walled nanotubes (SWNT) from a circular to a collapsed cross section. Small-diameter SWNTs deform continuously under pressure, whereas...

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Controlling the Orbital Sequence in Individual Cu-Phthalocyanine Molecules

J. Repp, C. Uhlmann, I. Swart
Nano Lett. | 2013 | 10.1021/nl304483h

We report on the controlled change of the energetic ordering of molecular orbitals. Negatively charged copper(II)phthalocyanine on NaCl/Cu(100) undergoes a Jahn–Teller distortion that lifts the degeneracy of two frontier orbitals. The energetic order of the...

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Correction to A General Method for Suzuki–Miyaura Coupling Reactions Using Lithium Triisopropyl Borates

Matthias A. Oberli, Stephen L. Buchwald
Org. Lett. | 2013 | 10.1021/ol401288q

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Oxidative Diamination Promoted by Dinuclear Iodine(III) Reagents

Eduardo C. Escudero-Adán, José A. Souto, Kilian Muñiz, Caren Röben
Org. Lett. | 2013 | 10.1021/ol3034884

New dinuclear iodine(III) reagents for the intermolecular diamination of alkenes are reported. These are accessible through protolytic aminolysis events, which generate defined imido-iodine(III) groups.

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Divergent Amine-Catalyzed [4 + 2] Annulation of Morita–Baylis–Hillman Allylic Acetates with Electron-Deficient Alkenes

Guiping Wu, Silong Xu, Zhengjie He, Rongshun Chen, Zifeng Qin
Org. Lett. | 2012 | 10.1021/ol2032569

An amine-catalyzed [4 + 2] annulation of Morita–Baylis–Hillman allylic acetates 2 with electron-deficient alkenes or diazenes has been developed for efficient syntheses of highly functionalized cyclohexenes, tetrahydropyridazines, and important spirocycles....

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Poly(4-tert-butylstyrene) as a Soluble Polymer Support in Homogeneous Catalysis

Chunmei Li, David E. Bergbreiter
Org. Lett. | 2003 | 10.1021/ol034655r

Use of soluble poly(4-tert-butylstyrene) (PtBS) as a support in synthesis is demonstrated. These soluble polymers supported catalysts that were used in a monophasic medium. Subsequent separation of the catalysts after reaction was effected either by cooling-...

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Removal, Recovery, and Recycling of Triarylphosphonium-Supported Tin Reagents for Various Organic Transformations

André B. Charette, Jean-Christophe Poupon, David Marcoux, Jean-Manuel Cloarec
Org. Lett. | 2007 | 10.1021/ol701447q

Phosphonium-supported tin reagents and catalysts were prepared and were shown to be effective in Stille couplings, radical dehalogenations, radical cyclizations, and carbonyl allylations. Not only could the tin residues be removed from the crude reaction...

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Synthesis of Amidines Using N-Allyl Ynamides. A Palladium-Catalyzed Allyl Transfer through an Ynamido−π-Allyl Complex

Yu Zhang, Andrew G. Lohse, Richard P. Hsung, Jian Huang, Kyle A. DeKorver, Yan-Shi Zhang
Org. Lett. | 2009 | 10.1021/ol802844z

A de novo transformation of N-allyl-N-sulfonyl ynamides to amidines is described featuring a palladium-catalyzed N-to-C allyl transfer via ynamido−palladium−π-allyl complexes.

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L-Selectride-Mediated Highly Diastereoselective Asymmetric Reductive Aldol Reaction: Access to an Important Subunit for Bioactive Molecules

Xiaoming Xu, Christine Marian, Arun K. Ghosh, Jorden Kass, David D. Anderson
Org. Lett. | 2008 | 10.1021/ol801971t

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Highly Stereoselective Synthesis of Novel α-Haloenamides via a Mild and Efficient Hydrohalogenation of Ynamides

Heather Coverdale, Richard P. Hsung, Kimberly C. M. Kurtz, Jason A. Mulder, Michael O. Frederick, Craig A. Zificsak, Lichun Shen
Org. Lett. | 2003 | 10.1021/ol0300266

A highly stereoselective preparation of novel chiral (E)-α-haloenamides under mild conditions utilizing magnesium halide salts is described. This unexpected mild and efficient hydrohalogenation reaction highlights another synthetic utility of ynamides.

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Synthesis of ω-Hydroxy Ketones from ω-Benzyloxy Weinreb Amides by Using a Chemoselective Nucleophilic Addition/Birch Reduction Process

Janine Cossy, Catherine Taillier, Christophe Meyer, Véronique Bellosta
Org. Lett. | 2004 | 10.1021/ol049434f

A chemoselective nucleophilic addition/Birch reduction process applied to ω-benzyloxy Weinreb amides led to ω-hydroxy ketones in good yields.

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Efficient and Stereoselective Synthesis of Allylic Ethers and Alcohols

István E. Markó, Jiří Pospíšil
Org. Lett. | 2006 | 10.1021/ol062433y

A short and efficient synthesis of allylic TBS ethers and allylic alcohols has been developed, based upon a unique Kocienski−Julia olefination reaction. Allylic alcohols and allylic ethers are obtained in good to excellent yields and with high...

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Gold(I)-Catalyzed Highly Regio- and Stereoselective Decarboxylative Amination of Allylic N-Tosylcarbamates via Base-Induced Aza-Claisen Rearrangement in Water

Dan Yang, Dong Xing
Org. Lett. | 2010 | 10.1021/ol100056f

A gold(I)-catalyzed decarboxylative amination of allylic N-tosylcarbamates via base-induced aza-Claisen rearrangement has been developed. A variety of substituted N-tosyl allylic amines were obtained in good yield, excellent regioselectivity, and high to...

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