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An AIE active Y-shaped diimidazolylbenzene: aggregation and disaggregation for Cd2+ and Fe3+ sensing in aqueous solution

Org. and Biomol. Chem. - 17 November, 2014 - 15:17

Org. Biomol. Chem., 2014, 12,9524-9527
DOI: 10.1039/C4OB01635A, CommunicationChengming Li, Chao Gao, Jingbo Lan, Jingsong You, Ge Gao
A simple Y-shaped dimb with AIE properties exhibited fluorescence turn-on by Cd2+ induced aggregation and fluorescence turn-off by Fe3+ induced disaggregation.
The content of this RSS Feed (c) The Royal Society of Chemistry

A Simple and Robust Preparation of N-Acetylindoxyls: Precursors for Indigogenic Substrates

Org. and Biomol. Chem. - 17 November, 2014 - 15:17
Org. Biomol. Chem., 2014, Accepted Manuscript
DOI: 10.1039/C4OB02248C, PaperMichael N Gandy, Lindsay Byrne, Keith A Stubbs
A generalised, simple and efficient synthesis of N-acetyl-5-bromo-4-chloroindoxyl and related analogues required for the synthesis of indigogenic substrates to probe for biological activities is reported. The method is both synthetically...
The content of this RSS Feed (c) The Royal Society of Chemistry

1,4 Addition of Unprotected-Pyrrole onto Chiral Acrylamides: Toward Synthesis of new Polypeptidic Architectures

Org. and Biomol. Chem. - 17 November, 2014 - 15:17
Org. Biomol. Chem., 2014, Accepted Manuscript
DOI: 10.1039/C4OB01920B, PaperBouzbouz Samir, Alexandre Gratais, Xavier Pannecoucke
A diversity of new functionalized acyclic chiral pyrroloamide compounds were synthesized by a simple and robust process involving the creation of a C-C bond between unprotected pyrroles and acyclic chiral...
The content of this RSS Feed (c) The Royal Society of Chemistry

Computational study on the intramolecular self-organization of the macrorings of some 'giant' cyclodextrins (CDn, n = 40, 70, 85, 100)

Org. and Biomol. Chem. - 17 November, 2014 - 15:17
Org. Biomol. Chem., 2014, Accepted Manuscript
DOI: 10.1039/C4OB02218A, PaperPetko Ivanov, Emanouil Jordanov Atanassov, Carlos Jaime
The conformations of some 'giant' cyclodextrins (CDn, n = 40, 70, 85, 100) were examined by molecular dynamic simulations using the Glycam06 force field. CD14 and CD26, the largest cyclodextrins...
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Hydrolytic inhibition of [small alpha]-chymotrypsin by 2,8,14,20-tetrakis(D-leucyl-D-valinamido)resorc[4]arenecarboxylic acid: a spectroscopic NMR and computational combined approach

Org. and Biomol. Chem. - 17 November, 2014 - 15:17
Org. Biomol. Chem., 2014, Accepted Manuscript
DOI: 10.1039/C4OB01936A, PaperGloria Uccello-Barretta, Federica Balzano, Federica Aiello, Letizia Vanni, Mattia Mori, Sergio Menta, Andrea Calcaterra, Bruno Botta
The stereochemical features of 2,8,14,20-tetrakis(D-leucyl-D-valinamido)resorc[4]arenecarboxylic acid and N-succinyl-L-alanyl-L-alanyl-L-prolyl-L-phenylalanine-4-nitroanilide polypeptide substrate were investigated by Nuclear Magnetic Resonance spectroscopy. Proton selective relaxation parameters gave the basis of the inhibitory activity of resorcin[4]arene...
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pH response and molecular recognition in a low molecular weight peptide hydrogel

Org. and Biomol. Chem. - 17 November, 2014 - 15:17

Org. Biomol. Chem., 2014, Advance Article
DOI: 10.1039/C4OB02069C, PaperStefanie C. Lange, Jan Unsleber, Patrick Drucker, Hans-Joachim Galla, Mark P. Waller, Bart Jan Ravoo
The preparation and characterization of a tripeptide based hydrogel, which possesses characteristic rheological properties, is pH responsive and can be functionalized at its thiol function is reported.
To cite this article before page numbers are assigned, use the DOI form of citation above.
The content of this RSS Feed (c) The Royal Society of Chemistry

Facile diverted synthesis of pyrrolidinyl triazoles using organotrifluoroborate: discovery of potential mPTP blockers

Org. and Biomol. Chem. - 17 November, 2014 - 15:17

Org. Biomol. Chem., 2014, 12,9674-9682
DOI: 10.1039/C4OB01967A, PaperOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.Sun hwa Jung, Kihang Choi, Ae Nim Pae, Jae Kyun Lee, Hyunah Choo, Gyochang Keum, Yong Seo Cho, Sun-Joon Min
Pyrrolidinyl triazoles were synthesized via Huisgen 1,3-dipolar cycloadditions of ethynyl trifluoroborate followed by Suzuki-Miyaura coupling reactions and biologically evaluated as potential mPTP blockers.
The content of this RSS Feed (c) The Royal Society of Chemistry

pKa Modulation in rhodamine based probes for colorimetric detection of picric acid

Org. and Biomol. Chem. - 17 November, 2014 - 15:17

Org. Biomol. Chem., 2014, 12,9510-9513
DOI: 10.1039/C4OB02001D, CommunicationV. Nagarajan, Bamaprasad Bag
The selective detection of picric acid among other organic acidic analytes (A's) was achieved via a pKa compatibility approach by tuning the pKa of RSLs (1 and 2) by adjusting the proportion of non-aqueous component in a mixed solvent medium (bar).
The content of this RSS Feed (c) The Royal Society of Chemistry

Efficient silver-catalyzed direct sulfenylation and selenylation of rich arenes

Org. and Biomol. Chem. - 17 November, 2014 - 15:17

Org. Biomol. Chem., 2014, 12,9557-9561
DOI: 10.1039/C4OB01992J, PaperGuobing Yan, Arun Jyoti Borah, Lianggui Wang
An efficient protocol for silver/copper-cocatalyzed direct sulfenylation and selenylation of arenes with aryl disulfides and diselenides has been developed.
The content of this RSS Feed (c) The Royal Society of Chemistry

Comparative perspective and synthetic applications of transition metal mediated oxidative cyclisation of 1,5-dienes towards cis-2,5-disubstituted tetrahydrofurans

Org. and Biomol. Chem. - 17 November, 2014 - 15:17

Org. Biomol. Chem., 2014, 12,9492-9504
DOI: 10.1039/C4OB01491J, Review ArticleNadeem S. Sheikh
Synthesis of cis-2,5-disubstituted tetrahydrofuran rings from 1,5-diene precursors using metal-oxo species along with their mechanistic proposals and synthetic applications is concisely reviewed.
The content of this RSS Feed (c) The Royal Society of Chemistry

Diastereoselective photodimerization reactions of chromone-2-carboxamides to construct a C2-chiral scaffold

Org. and Biomol. Chem. - 17 November, 2014 - 15:17

Org. Biomol. Chem., 2014, 12,9644-9649
DOI: 10.1039/C4OB01827C, PaperFumitoshi Yagishita, Nozomi Baba, Yuki Ueda, Satoshi Katabira, Yoshio Kasashima, Takashi Mino, Masami Sakamoto
Irradiation of three chromone-2-carboxamides with a chiral auxiliary resulted in diastereoselective formation of a C2-chiral anti-HH dimer scaffold.
The content of this RSS Feed (c) The Royal Society of Chemistry

Catalytic asymmetric Povarov reaction of isatin-derived 2-azadienes with 3-vinylindoles

Org. and Biomol. Chem. - 17 November, 2014 - 15:17

Org. Biomol. Chem., 2014, 12,9539-9546
DOI: 10.1039/C4OB01741B, PaperHong-Hao Zhang, Xiao-Xue Sun, Jing Liang, Yue-Ming Wang, Chang-Chun Zhao, Feng Shi
The first catalytic asymmetric Povarov reaction of isatin-derived 2-azadienes with 3-vinylindoles has been established to construct a spiro[indolin-3,2[prime or minute]-quinoline] framework bearing an indole moiety.
The content of this RSS Feed (c) The Royal Society of Chemistry

Synthesis and evaluation of new 18F-labelled acetamidobenzoxazolone-based radioligands for imaging of the translocator protein (18 kDa, TSPO) in the brain

Org. and Biomol. Chem. - 17 November, 2014 - 15:17

Org. Biomol. Chem., 2014, 12,9621-9630
DOI: 10.1039/C4OB01933D, PaperAnjani K. Tiwari, Masayuki Fujinaga, Joji Yui, Tomoteru Yamasaki, Lin Xie, Katsushi Kumata, Anil K. Mishra, Yoko Shimoda, Akiko Hatori, Bin Ji, Masanao Ogawa, Kazunori Kawamura, Feng Wang, Ming-Rong Zhang
Two new PET ligands for TSPO imaging in brain.
The content of this RSS Feed (c) The Royal Society of Chemistry

Fischer indolisation of N-([small alpha]-ketoacyl)anthranilic acids into 2-(indol-2-carboxamido)benzoic acids and 2-indolyl-3,1-benzoxazin-4-ones and their NMR study

Org. and Biomol. Chem. - 17 November, 2014 - 15:17

Org. Biomol. Chem., 2014, 12,9650-9664
DOI: 10.1039/C4OB01714E, PaperKarel Proisl, Stanislav Kafka, Damijana Urankar, Martin Gazvoda, Roman Kimmel, Janez Kosmrlj
A new approach to 2-indolyl functionalized anthranilic acids and 3,1-benzoxazin-4-ones.
The content of this RSS Feed (c) The Royal Society of Chemistry

Copper catalyzed oxidative ortho-C-H benzoxylation of 2-phenylpyridines with benzyl alcohols and benzyl amines as benzoxylation sources

Org. and Biomol. Chem. - 17 November, 2014 - 15:17

Org. Biomol. Chem., 2014, 12,9631-9637
DOI: 10.1039/C4OB01912A, PaperAshok B. Khemnar, Bhalchandra M. Bhanage
An efficient methodology for the ortho benzoxylation of 2-phenylpyridine via C-H bond activation using benzyl alcohols and benzyl amines as arylcarboxy sources has been developed.
The content of this RSS Feed (c) The Royal Society of Chemistry

Design and synthesis of a new dimeric xanthone derivative: enhancement of G-quadruplex selectivity and telomere damage

Org. and Biomol. Chem. - 17 November, 2014 - 15:17

Org. Biomol. Chem., 2014, 12,9572-9582
DOI: 10.1039/C4OB01658K, PaperMarco Franceschin, Daniele Nocioni, Annamaria Biroccio, Emanuela Micheli, Stefano Cacchione, Chiara Cingolani, Alessandro Venditti, Pasquale Zizza, Armandodoriano Bianco, Alessandro Altieri
Dimerization of the xanthone core greatly enhances G-quadruplex binding and biological activity.
The content of this RSS Feed (c) The Royal Society of Chemistry

Phosphonated chelates for nuclear imaging

Org. and Biomol. Chem. - 17 November, 2014 - 15:17

Org. Biomol. Chem., 2014, 12,9601-9620
DOI: 10.1039/C4OB01514B, PaperSabah Abada, Alexandre Lecointre, Caline Christine, Laurence Ehret-Sabatier, Falk Saupe, Gertraud Orend, David Brasse, Ali Ouadi, Thomas Hussenet, Patrice Laquerriere, Mourad Elhabiri, Loic J. Charbonniere
A series of phosphonated chelates and their coordination properties is described. SPECT/CT imaging studies with 99mTc using two ligands and a bifunctional chelate labeled to a tumor targeting antibody are shown.
The content of this RSS Feed (c) The Royal Society of Chemistry

Glucuronidation of bile acids under flow conditions: design of experiments and Koenigs-Knorr reaction optimization

Org. and Biomol. Chem. - 17 November, 2014 - 15:17

Org. Biomol. Chem., 2014, 12,9592-9600
DOI: 10.1039/C4OB01911C, PaperSerena Mostarda, Paolo Filipponi, Roccaldo Sardella, Francesco Venturoni, Benedetto Natalini, Roberto Pellicciari, Antimo Gioiello
An efficient method for the C3-glucuronidation of bile acids is developed under flow conditions.
The content of this RSS Feed (c) The Royal Society of Chemistry

The protecting-group directed diastereoselective Nozaki-Hiyama-Kishi (NHK) reaction: total synthesis and biological evaluation of zeaenol, 7-epi-zeaenol and its analogues

Org. and Biomol. Chem. - 17 November, 2014 - 15:17

Org. Biomol. Chem., 2014, 12,9683-9695
DOI: 10.1039/C4OB01811G, PaperDebendra K. Mohapatra, D. Sai Reddy, N. Arjunreddy Mallampudi, Janardhan Gaddam, Sowjanya Polepalli, Nishant Jain, J. S. Yadav
A convergent and concise total synthesis of zeaenol, 7-epi-zeaenol, and its analogues is achieved using protecting group-directed NHK reaction.
The content of this RSS Feed (c) The Royal Society of Chemistry

Metal-free, one-pot conversion of proline derivatives into 2-aryl-3-iodo pyrrolidines by a sequential scission-iodination-arylation process

Org. and Biomol. Chem. - 17 November, 2014 - 15:17

Org. Biomol. Chem., 2014, 12,9547-9556
DOI: 10.1039/C4OB01372G, PaperVenkateswara Rao Batchu, Ivan Romero-Estudillo, Alicia Boto, Javier Miguelez
A sequential radical decarboxylation-oxidation-iodination-arylation process allows the metal-free, direct conversion of proline derivatives into 2-aryl-3-iodopyrrolidines, which are valuable precursors of a variety of heterocycles.
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