Org. and Biomol. Chem.

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Control of reaction pathways in the photochemical reaction of a quinone with tetramethylethylene by metal binding

26 August, 2014 - 19:54

Org. Biomol. Chem., 2014, 12,7004-7017
DOI: 10.1039/C4OB00659C, PaperHiroaki Yamamoto, Kei Ohkubo, Seiji Akimoto, Shunichi Fukuzumi, Akihiko Tsuda
Supramolecular photochemical reactions of a quinone derivative, bearing an oligoether sidearm, with tetramethylethylene occur upon noncovalent complexations with metal salts.
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Evaluation of 4-substituted styrenes as functional monomers for the synthesis of theophylline-specific molecularly imprinted polymers

26 August, 2014 - 19:54

Org. Biomol. Chem., 2014, 12,6994-7003
DOI: 10.1039/C4OB00517A, PaperHazit Zayas, Clovia I. Holdsworth, Michael C. Bowyer, Adam McCluskey
Six novel functional monomers (M1-M6) were examined for their ability to imprint theophylline (1). The best selectivity was observed with M2.
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Synthesis of Fluorescent 2,3,5,6-Tetraalkynylpyridines by Site-Selective Sonogashira-Reactions of 2,3,5,6-Tetrachloropyridines

24 August, 2014 - 19:17
Org. Biomol. Chem., 2014, Accepted Manuscript
DOI: 10.1039/C4OB01292E, PaperPeter Ehlers, Andranik Petrosyan, Antje Neubauer, Timo Broese, Stefan Lochbrunner, Tariel Ghochikyan, Ashot Saghyan, Peter Langer
4-Substituted 2,3,5,6-tetraalkynylpyridines were prepared by tetra-fold Sonogashira reactions of the corresponding 2,3,5,6-tetrachloropyridines. 2,6-Dialkynyl-3,5-dichloropyridines were prepared by site-selective Sonogashira reactions from various 4-unsubstituted and 4-substituted tetrachloropyridines. Subsequent two-fold Sonogashira reactions of...
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Indole synthesis from N-allenyl-2-iodoanilines under mild conditions mediated by samarium(II) diiodide

20 August, 2014 - 18:17

Org. Biomol. Chem., 2014, 12,6812-6815
DOI: 10.1039/C4OB01164C, CommunicationHiroki Iwasaki, Kenji Suzuki, Mitsunari Yamane, Shohei Yoshida, Naoto Kojima, Minoru Ozeki, Masayuki Yamashita
A novel method for indole skeleton synthesis under mild conditions mediated by samarium(II) diiodide has been developed.
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Directed arene/alkyne annulation reactions via aerobic copper catalysis

20 August, 2014 - 18:17

Org. Biomol. Chem., 2014, Advance Article
DOI: 10.1039/C4OB01312C, PaperYi Zhang, Qian Wang, Huidong Yu, Yong Huang
We describe a straightforward protocol for a smooth dehydrogenative annulation reaction between various arenes and terminal alkynes using a catalytic amount of CuBr2 and molecular oxygen.
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CoPc-catalyzed selective radical arylation of anilines with arylhydrazines for synthesis of 2-aminobiaryls

20 August, 2014 - 18:17

Org. Biomol. Chem., 2014, 12,6922-6926
DOI: 10.1039/C4OB00798K, PaperTao Jiang, Sheng-Yan Chen, Guo-Yu Zhang, Run-Sheng Zeng, Jian-Ping Zou
CoPc-catalyzed selective radical arylation of anilines with arylhydrazines to afford 2-aminobiaryls in moderate to good yields is described.
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Orthogonal functionalisation of [small alpha]-helix mimetics

20 August, 2014 - 18:17

Org. Biomol. Chem., 2014, 12,6794-6799
DOI: 10.1039/C4OB00915K, CommunicationOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Anna Barnard, Kerya Long, David J. Yeo, Jennifer A. Miles, Valeria Azzarito, George M. Burslem, Panchami Prabhakaran, Thomas A. Edwards, Andrew J. Wilson
We present methodology to modify N-alkylated aromatic oligoamide [small alpha]-helix mimetics using 'click' chemistry.
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Direct intermolecular C-H arylation of unactivated arenes with aryl bromides catalysed by 2-pyridyl carbinol

20 August, 2014 - 18:17

Org. Biomol. Chem., 2014, 12,6820-6823
DOI: 10.1039/C4OB01211A, CommunicationYinuo Wu, Pui Ying Choy, Fuk Yee Kwong
A general C-H arylation of unactivated arenes by aryl/heteroaryl bromides in the presence of 2-pyridyl carbinol and potassium tert-butoxide is described.
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L-Rhamnose-containing supramolecular nanofibrils as potential immunosuppressive materials

20 August, 2014 - 18:17

Org. Biomol. Chem., 2014, 12,6816-6819
DOI: 10.1039/C4OB01362J, CommunicationFan Zhao, Balthasar A. Heesters, Isaac Chiu, Yuan Gao, Junfeng Shi, Ning Zhou, Michael C. Carroll, Bing Xu
The nanofibrils of an L-rhamnose-based hydrogelator illustrate the first example of the supramolecular assemblies of a saccharide to suppress immunity.
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New reagents for detecting free radicals and oxidative stress

20 August, 2014 - 18:17

Org. Biomol. Chem., 2014, 12,6757-6766
DOI: 10.1039/C4OB01172D, Review ArticleMina Barzegar Amiri Olia, Carl H. Schiesser, Michelle K. Taylor
This short review highlights recent progress in the development of reagents for the detection of free radicals and reactive oxygen species, a key step on the road to their understanding and ultimate control.
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Design and synthesis of potent macrocyclic HIV-1 protease inhibitors involving P1-P2 ligands

20 August, 2014 - 18:17

Org. Biomol. Chem., 2014, 12,6842-6854
DOI: 10.1039/C4OB00738G, PaperArun K. Ghosh, Gary E. Schiltz, Linah N. Rusere, Heather L. Osswald, D. Eric Walters, Masayuki Amano, Hiroaki Mitsuya
A series of potent macrocyclic HIV-1 protease inhibitors have been designed and synthesized.
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Total synthesis of putative montamine and a proposed structural reassignment

20 August, 2014 - 18:17

Org. Biomol. Chem., 2014, 12,6878-6884
DOI: 10.1039/C4OB01304B, PaperLachlan M. Blair, Elizabeth A. Colby Davie, Jonathan Sperry
The spectroscopic data for synthetic montamine does not match the proposed N,N[prime or minute]-linked structure and closely resembles a known 4,4[prime or minute]-bismoschamine natural product.
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Cross-catalytic peptide nucleic acid (PNA) replication based on templated ligation

20 August, 2014 - 18:17

Org. Biomol. Chem., 2014, 12,6901-6907
DOI: 10.1039/C4OB01158A, PaperAbhishek Singhal, Peter E. Nielsen
PNA replication via decameric template directed cross-catalytic ligation follows product inhibited kinetics yielding approximately two replication rounds.
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A general catalyst for Suzuki-Miyaura and Sonogashira reactions of aryl and heteroaryl chlorides in water

20 August, 2014 - 18:17

Org. Biomol. Chem., 2014, 12,6944-6952
DOI: 10.1039/C4OB00846D, PaperHui Peng, Ya-Qin Chen, Shu-Lan Mao, Yun-Xiao Pi, You Chen, Ze-Yu Lian, Tong Meng, Sheng-Hua Liu, Guang-Ao Yu
An air-stable sulfonated indenyl phosphine/Pd-catalyst system was used in Suzuki-Miyaura and Sonogashira coupling reactions in water.
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Highly efficient synthesis of a tristable molecular shuttle and its controlled motion under chemical stimuli

18 August, 2014 - 17:54

Org. Biomol. Chem., 2014, 12,6937-6943
DOI: 10.1039/C4OB01283F, PaperZheng Meng, Chuan-Feng Chen
A tristable molecular shuttle could be efficiently synthesized in 76% yield by exploiting a K+ ion template and a bulky isocyanate stopper.
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Monopyrrolotetrathiafulvalene-succinamide conjugates and their TCNQ charge transfer complex based supramolecular gels with multiple stimulus responsiveness

18 August, 2014 - 17:54

Org. Biomol. Chem., 2014, 12,6927-6936
DOI: 10.1039/C4OB01397B, PaperYucun Liu, Ningjuan Zheng, Tie Chen, Longyi Jin, Bingzhu Yin
Monopyrrolotetrathiafulvalene-succinamide conjugates and their TCNQ charge transfer (CT) complexes have been developed as LMOGs. The native gels and CT complex gels exhibit smart multiple stimulus responsiveness.
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A one-pot synthetic strategy for construction of the dibenzodiazepine skeleton via a transition metal-free process

18 August, 2014 - 17:54

Org. Biomol. Chem., 2014, 12,6895-6900
DOI: 10.1039/C4OB00871E, PaperShuai Fang, Xiaoyi Niu, Zeyuan Zhang, Yan Sun, Xiaomeng Si, Cuicui Shan, Lei Wei, Aiqing Xu, Lei Feng, Chen Ma
A one-pot transition metal-free methodology for constructing pharmacologically active dibenzodiazepine derivatives was developed.
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Recent advances in heterobimetallic palladium(II)/copper(II) catalyzed domino difunctionalization of carbon-carbon multiple bonds

18 August, 2014 - 17:54

Org. Biomol. Chem., 2014, 12,6767-6789
DOI: 10.1039/C4OB00610K, Review ArticleEgle M. Beccalli, Gianluigi Broggini, Silvia Gazzola, Alberto Mazza
The Pd(II)/Cu(II)-catalysed double functionalization of carbon-carbon multiple bonds in domino processes has emerged in recent years as a fruitful tool for the rapid synthesis of complex molecular scaffolds.
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A self-replicating peptide nucleic acid

18 August, 2014 - 17:54

Org. Biomol. Chem., 2014, 12,6908-6914
DOI: 10.1039/C4OB01168F, PaperTobias A. Ploger, Gunter von Kiedrowski
This paper presents evidence for self-replication in a most basic PNA molecular network and provides an explanation for the underlying kinetics.
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Formal synthesis of (+)-3-epi-eupomatilone-6 and the 3,5-bis-epimer

18 August, 2014 - 17:54

Org. Biomol. Chem., 2014, 12,6885-6894
DOI: 10.1039/C4OB01078G, PaperSariya Yodwaree, Darunee Soorukram, Chutima Kuhakarn, Patoomratana Tuchinda, Vichai Reutrakul, Manat Pohmakotr
The formal synthesis of (+)-3-epi-eupomatilone-6 and the 3,5-bis-epimer has been accomplished using stereoselective conjugate addition of vinylmagnesium chloride to a chiral [small alpha],[small beta]-unsaturated N-acyl oxazolidinone followed by [small alpha]-methylation as the key steps.
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