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Enzymatic Synthesis of 7-Deoxy-N-acetylneuraminic Acid and 7-O-Methyl-N-acetylneuraminic Acid

Randall L. Hakomb; Wolfgang Fitz; Chi-Huey Wang
Tetrahedron: Asymmetry | 1994

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Synthesis, X-ray studies, spectroscopic characterization and DFT calculations of p-tolylimido rhenium(V) complexes bearing an imidazole-based ligand

B. Machura, M. Wolff, I. Gryca
Polyhedron | 2011 | 10.1016/j.poly.2010.10.002

Novelp -tolylimido rhenium(V) complexes [Re(p-NC 6 H 4 CH 3 )X 2 (hpb)(PPh 3 )] and [Re(p-NC 6 H 4 CH 3 )(hpb) 2 (PPh 3 )]X (X = Cl, Br) have been obtained in the reactions of [Re(p-NC 6 H 4 CH 3 )X 3 (PPh 3 ) 2 ] with 2-(2-hydroxyphenyl)-1H-benzimidazole...

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Bile Acid-Based 1,2,4-Trioxanes: Synthesis and Antimalarial Assessment(1)

Singh, C.; Hassam, M.; Verma, V. P.; Singh, S. A.; Naikade, N. K.; Puri, S. K.; Maulik, P. R.; Kant, R.
Journal of Medicinal Chemistry | 2012 | 10.1021/jm301323k

A new series of bile acid-based trioxanes 23a–d, 24a–d, 25a–d, 26a, 26b, and 26d have been synthesized and assessed for their antimalarial activity against multidrug-resistant Plasmodium yoelii in Swiss mice by oral route. The antimalarial activity of...

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Toward Optimized High-Relaxivity MRI Agents:  The Effect of Ligand Basicity on the Thermodynamic Stability of Hexadentate Hydroxypyridonate/Catecholate Gadolinium(III) Complexes

Dan M. J. Doble, Marco Melchior, Brendon O'Sullivan, Carsten Siering, Jide Xu, Valérie C. Pierre, Kenneth N. Raymond
Inorganic Chemistry | 2003 | 10.1021/ic026240s

The thermodynamic stabilities of the Gd III complexes of five hexadentate ligands which incorporate catecholate and hydroxypyridonate subunits with a range of basicities have been determined. The most stable Gd III complex at a physiological pH of 7.4 was...

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Ir-Catalyzed Direct Borylation at the 4-Position of Pyrene

Zhiqiang Liu, Yuanyuan Wang, Ying Chen, Jie Liu, Qi Fang, Christian Kleeberg, Todd B. Marder
The Journal of Organic Chemistry | 2012 | 10.1021/jo301293w

The first direct borylation of a C–H bond at the 4-position of pyrene was achieved using [Ir(COD)Cl] 2 /dtbpy as the catalyst precursor and B 2 pin 2 as the boron source. The position-related photophysical properties of pyrene derivatives are reported.

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Solid‐Phase Synthesis of RNA Analogs Containing Phosphorodithioate Linkages

Xianbin Yang
Current Protocols in Nucleic Acid Chemistry | 2017 | 10.1002/cpnc.40

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A Practical Synthesis of C2-Symmetric Chiral Binaphthyl Ketone Catalyst

Masahiko Seki, Shin-ichi Yamada, Tooru Kuroda, Ritsuo Imashiro, Toshiaki Shimizu
Synthesis | 2000 | 10.1055/s-2000-8197

A practical synthesis of 11-membered C 2-symmetric binaphthyl ketone (R)-1, a catalyst for asymmetric epoxidation, was developed. (±)-1,1'-Binaphthyl-2,2'-dicarboxylic acid [(±)-6] was efficiently resolved by (R)-(-)-1-cyclohexylethylamine to give (R)-6...

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Oxorhenium-catalyzed deoxydehydration of glycols and epoxides

Radhey S. Srivastava, Jacqkis Davis
Tetrahedron Letters | 2014 | 10.1016/j.tetlet.2014.05.044

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Preparation of aryl ketones via Ni-catalyzed Negishi-coupling reactions with acid chlorides

Seung-Hoi Kim, Reuben D. Rieke
Tetrahedron Letters | 2011 | 10.1016/j.tetlet.2011.01.135

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Palladium-Catalysed Synthesis of Enantiopure 1,2,4,5-Tetrahydro-1,4-benzodiazepin-3-(3H)-one Derivatives

Marta Catellani, Claudio Catucci, Giuseppe Celentano, Rafaella Ferraccioli
Synlett | 2001 | 10.1055/s-2001-14606

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A Density Functional Theory Study on the Kinetics and Thermodynamics of N-Glycosidic Bond Cleavage in 5-Substituted 2′-Deoxycytidines

Renee T. Williams, Yinsheng Wang
Biochemistry | 2012 | 10.1021/bi300797q

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Synthesis and reactions of the cyclic silyl peroxide 1,1,4,4-tetramethyl-2,3-dioxa-1,4-disilacyclohexane

Waldemar Adam, Rainer Albert
Tetrahedron Letters | 1992 | 10.1016/s0040-4039(00)74704-6

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Regioselective Copper-Catalyzed Amination of Chlorobenzoic Acids:  Synthesis and Solid-State Structures ofN-Aryl Anthranilic Acid Derivatives

Xuefeng Mei, Adam T August, Christian Wolf
The Journal of Organic Chemistry | 2006 | 10.1021/jo0518809

A chemo- and regioselective copper-catalyzed cross-coupling reaction for effective amination of 2-chlorobenzoic acids with aniline derivatives has been developed. The method eliminates the need for acid protection and produces a wide range of N-aryl...

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Oxidative esterification of aldehydes with alcohols using imidazolium perrhenate catalysts

Ruixia Xie, Xin Wang, Jingyun Wang, Jinxin Ye, Mingdong Zhou, Shuliang Zang
Journal of Saudi Chemical Society | 2017 | 10.1016/j.jscs.2015.12.007

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Asymmetric synthesis of (−)-α-conhydrine

Subba Rao V. Kandula, Pradeep Kumar
Tetrahedron: Asymmetry | 2005 | 10.1016/j.tetasy.2005.08.045

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Selective quenching of benzimidazole derivatives by Cu2+ metal ion

J. Jayabharathi, V. Thanikachalam, K. Jayamoorthy, R. Sathishkumar
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2012 | 10.1016/j.saa.2012.06.012

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Stereocontrolled construction of the trans-tetrahydrofuran units in Annonaceous acetogenins

Shi-Kai Tian, Zhi-Min Wang, Jian-Kang Jiang, Min Shi
Tetrahedron: Asymmetry | 1999 | 10.1016/s0957-4166(99)00259-1

Abstract An efficient synthetic method for the construction of trans-tetrahydrofuran (THF) unit from trans-1,5,9-decatriene was successfully developed by means of Sharpless AD reactions and oxidative cyclizations catalyzed by Co(modp)2 under an oxygen...

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On a new synthesis of sterpurene and the bioactivity of some related Chondrostereum purpureum sesquiterpene metabolites

George M. Strunz, Richard Bethell, Michael T. Dumas, Nick Boyonoski
Canadian Journal of Chemistry | 1997 | 10.1139/v97-090

Sterpurene, a sesquiterpene hydrocarbon metabolite of Chondrostereumpurpureum, a plant pathogen and potential mycoherbicide, was synthesized by a six-step sequence, in 33% overall yield. The key steps were a thermal [4 + 2] (Diels–Alder)...

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CHLOROSULFONATION OF SOME POLYNUCLEAR HETEROCYCLIC COMPOUNDS

Jatinder P. Bassina; Richard J. Cremlyna; Frederick J.
Phosphorus, Sulfur, and Silicon and the Related Elements | 1992 | 10.1080/10426509208031549

Chlorosulfonation

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Use of the Nonionic Superbase P(MeNCH 2 CH 2 ) 3 N in the Selective Monoalkylation of Active-Methylene Compounds

Subramaniam Arumugam, Dale McLeod, John G. Verkade
The Journal of Organic Chemistry | 1998 | 10.1021/jo972350i

The symmetric active-methylene compounds CH 2 (CO 2 Et) 2 and CH 2 [C(O)Me] 2 are selectively monoalkylated in the presence of 1.1 equiv of a variety of alkyl halides and 1 equiv of the nonionic superbase P(MeNCH 2 CH 2 ) 3 N in 85−98% yields in 30 min at...

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