Royal Society of Chemistry

A palladium-catalyzed enantioselective hydroesterification of alkenylphenols with phenyl formate. A facile approach to optically active dihydrocoumarins

Org. and Biomol. Chem. - 29 August, 2015 - 13:17

Org. Biomol. Chem., 2015, Advance Article
DOI: 10.1039/C5OB01431J, PaperJingfu Li, Wenju Chang, Wenlong Ren, Wei Liu, Haining Wang, Yian Shi
An effective palladium-catalyzed enantioselective hydroesterification of alkenylphenols with phenyl formate as a CO source is described.
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D-Isonucleotide (isoNA) incorporation around cleavage site of passenger strand promotes the vibration of Ago2-PAZ domain and enhances in vitro potency of siRNA

Org. and Biomol. Chem. - 29 August, 2015 - 13:17

Org. Biomol. Chem., 2015, Advance Article
DOI: 10.1039/C5OB01119A, PaperYe Huang, Miao Tian, Yichao Zhang, Gang Sheng, Zhuo Chen, Yuan Ma, Yue Chen, Yihong Peng, Yi-Lei Zhao, Yanli Wang, Lihe Zhang, Zhenjun Yang
Isonucleotide modification around the cleavage site of the passenger strand affects the in vitro potency of modified siRNAs by altering the motion pattern of the Ago2-PAZ domain.
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A facile approach to the synthesis of structurally diverse 6,8a-dihydropyrido[2,3-d]pyrimidine derivatives via a three-component domino reaction

Org. and Biomol. Chem. - 29 August, 2015 - 13:17

Org. Biomol. Chem., 2015, 13,9181-9185
DOI: 10.1039/C5OB01484K, CommunicationYuvaraj Dommaraju, Shruti Bora, Dipak Prajapati
A concise and efficient approach to the synthesis of structurally diverse 6,8a-dihydropyrido[2,3-d]pyrimidine derivatives has been accomplished for the first-time by a three-component reaction involving alkylsulfonyl acetonitrile, an aromatic aldehyde, and 6-aminouracil.
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Achiral, acyclic nucleic acids: synthesis and biophysical studies of a possible prebiotic polymer

Org. and Biomol. Chem. - 29 August, 2015 - 13:17

Org. Biomol. Chem., 2015, 13,9249-9260
DOI: 10.1039/C5OB00898K, PaperP. Srivastava, R. Abou El Asrar, C. Knies, M. Abramov, M. Froeyen, J. Rozenski, H. Rosemeyer, P. Herdewijn
The search for prebiotic, nucleic acid precursors is, at its best, a speculative undertaking.
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Strategy of total synthesis based on the use of Rh-catalyzed stereoselective 1,4-addition

Org. and Biomol. Chem. - 29 August, 2015 - 13:17

Org. Biomol. Chem., 2015, 13,9168-9175
DOI: 10.1039/C5OB01402F, Review ArticleM. Jean, B. Casanova, S. Gnoatto, P. van de Weghe
In 1998, Hayashi and Miyaura reported the first asymmetric conjugate addition of aryl- and alkenyl-boronic acids to [small alpha],[small beta]-unsaturated ketones using chiral rhodium complexes as catalysts.
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Array-based sensing of purine derivatives with fluorescent dyes

Org. and Biomol. Chem. - 29 August, 2015 - 13:17

Org. Biomol. Chem., 2015, 13,9231-9235
DOI: 10.1039/C5OB01201E, PaperZiya Kostereli, Kay Severin
A sensor array based on polysulfonated fluorescent dyes can be used to differentiate purine and its derivatives with good precision.
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Recent synthetic additions to the visible light photoredox catalysis toolbox

Org. and Biomol. Chem. - 29 August, 2015 - 13:17

Org. Biomol. Chem., 2015, 13,9152-9167
DOI: 10.1039/C5OB01349F, Review ArticleRicardo A. Angnes, Zhou Li, Carlos Roque D. Correia, Gerald B. Hammond
The boom in visible light photoredox catalysis (VLPC) research has demonstrated that this novel synthetic approach is here to stay.
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Polytopic bis(oxazoline)-based ligands for recoverable catalytic systems applied to the enantioselective Henry reaction

Org. and Biomol. Chem. - 29 August, 2015 - 13:17

Org. Biomol. Chem., 2015, 13,9314-9322
DOI: 10.1039/C5OB01033K, PaperBeatriz Angulo, Jose I. Garcia, Clara I. Herrerias, Jose A. Mayoral, Ana C. Minana
Polytopic chiral ligands based on bis(oxazoline) motifs can be efficiently used to prepare recoverable catalytic systems for Henry reactions using a release-capture strategy.
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Rh(III)-catalyzed cyclization reaction of azoles with alkynes: efficient synthesis of azole-fused-pyridines

Org. and Biomol. Chem. - 29 August, 2015 - 13:17

Org. Biomol. Chem., 2015, 13,9186-9189
DOI: 10.1039/C5OB01338K, CommunicationXuebing Chen, Youzhi Wu, Jinyi Xu, Hequan Yao, Aijun Lin, Yue Huang
A Rh(III)-catalyzed cyclization of azoles with alkynes has been developed to construct azole-fused-pyridines in good to excellent yields.
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Synthesis of fully protected, reverse N-prenylated (2S,3R)-3-hydroxytryptophan, a unique building block of the cyclomarins

Org. and Biomol. Chem. - 29 August, 2015 - 13:17

Org. Biomol. Chem., 2015, 13,9267-9275
DOI: 10.1039/C5OB01438G, PaperPhilipp Barbie, Uli Kazmaier
The rather exotic amino acid of the cyclomarins, is obtained in enantio- and diastereomerically pure and fully protected form.
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Regio- and stereoselective synthesis of 2[prime or minute]-[small beta]-substituted-fluoroneplanocin A analogues as potential anticancer agents

Org. and Biomol. Chem. - 29 August, 2015 - 13:17

Org. Biomol. Chem., 2015, 13,9236-9248
DOI: 10.1039/C5OB01348H, PaperAkshata Nayak, Pramod K. Sahu, Jayoung Song, Sang Kook Lee, Lak Shin Jeong
Regio- and stereoselective synthesis of a series of 2[prime or minute]-[small beta]-substituted-6[prime or minute]-fluoro-cyclopentenyl-pyrimidines and -purines 8 and 9 as potential anticancer agents is described.
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Synthesis and biological evaluation of conformationally restricted adenine bicycloribonucleosides

Org. and Biomol. Chem. - 29 August, 2015 - 13:17

Org. Biomol. Chem., 2015, 13,9300-9313
DOI: 10.1039/C5OB00987A, PaperOpen Access Open Access Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.Hubert Hrebabecky, Eliska Prochazkova, Michal Sala, Pavla Plackova, Eva Tloustova, Ona Barauskas, Yu-Jen Lee, Yang Tian, Richard Mackman, Radim Nencka
We prepared a novel series of conformationally restricted bicyclonucleosides and nucleotides.
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Strand displacement and duplex invasion into double-stranded DNA by pyrrolidinyl peptide nucleic acids

Org. and Biomol. Chem. - 29 August, 2015 - 13:17

Org. Biomol. Chem., 2015, 13,9223-9230
DOI: 10.1039/C5OB01273B, PaperPeggy R. Bohlander, Tirayut Vilaivan, Hans-Achim Wagenknecht
Strand displacement and duplex invasion of DNA duplexes by pyrrolidinyl peptide nucleic acid are demonstrated using the concept of wavelength-shifting nucleic acid probes.
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Palladium-catalyzed arylation of 2H-chromene: a new entry to pyrano[2,3-c]carbazoles

Org. and Biomol. Chem. - 29 August, 2015 - 13:17

Org. Biomol. Chem., 2015, 13,9285-9293
DOI: 10.1039/C5OB01295C, PaperK. Ranjith Reddy, A. Siva Reddy, Devendra K. Dhaked, S. K. Rasheed, Anup Singh Pathania, Ravi Shankar, Fayaz Malik, Parthasarathi Das
Various pyrano[2,3-c]carbazoles are synthesized in high yields over five steps from commercially available resorcinol. Palladium-catalyzed arylation remains a key step in this novel strategy. The versatility of this protocol has been demonstrated by the first total synthesis of naturally occurring carbazole clauraila C.
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Understanding the conformational behaviour of Ac-Ala-NHMe in different media. A joint NMR and DFT study

Org. and Biomol. Chem. - 29 August, 2015 - 13:17

Org. Biomol. Chem., 2015, 13,9206-9213
DOI: 10.1039/C5OB01296A, PaperRodrigo A. Cormanich, Michael Buhl, Roberto Rittner
The conformational behaviour of Ac-Ala-NHMe is investigated in the gas-phase and in nonpolar, polar and polar protic solutions by experimental 1H NMR and theoretical calculations.
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Metal-free cycloaddition to synthesize naphtho[2,3-d][1,2,3]triazole-4,9-diones

Org. and Biomol. Chem. - 29 August, 2015 - 13:17

Org. Biomol. Chem., 2015, 13,9261-9266
DOI: 10.1039/C5OB01322D, PaperPing-Fan Chen, Kung-Kai Kuo, Jaya Kishore Vandavasi, Siva Senthil Kumar Boominathan, Chung-Yu Chen, Jeh-Jeng Wang
A metal-free domino [3 + 2] cycloaddition is reported to construct naphtho[2,3-d][1,2,3]triazole-4,9-dione derivatives and provide an alternative approach to the azide-alkyne cycloadditions.
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Calix[4]arene triazole-linked pyrene: click synthesis, assembly on graphene oxide, and highly sensitive carbaryl sensing in serum

Org. and Biomol. Chem. - 29 August, 2015 - 13:17

Org. Biomol. Chem., 2015, 13,9294-9299
DOI: 10.1039/C5OB01388G, PaperYue Sun, Xiaowei Mao, Li Luo, Demei Tian, Haibing Li
Graphene oxide modified with a fluorescent calix[4]arene showed a highly selective recognition for carbaryl.
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Micellization properties of cardanol as a renewable co-surfactant

Org. and Biomol. Chem. - 29 August, 2015 - 13:17

Org. Biomol. Chem., 2015, 13,9214-9222
DOI: 10.1039/C5OB01059D, PaperAntonella Fontana, Susanna Guernelli, Nelsi Zaccheroni, Romina Zappacosta, Damiano Genovese, Lucia De Crescentini, Serena Riela
Hydrogenated cardanol (HC) is used as a green additive for commercial surfactants. A percentage as high as 10% of HC does not affect commercial surfactant properties although it significantly increases their sustainability.
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Ruthenium-catalyzed cyclization of N-carbamoyl indolines with alkynes: an efficient route to pyrroloquinolinones

Org. and Biomol. Chem. - 29 August, 2015 - 13:17

Org. Biomol. Chem., 2015, 13,9276-9284
DOI: 10.1039/C5OB01146A, PaperRamasamy Manoharan, Masilamani Jeganmohan
A regioselective synthesis of substituted pyrroloquinolinones by a ruthenium-catalyzed oxidative cyclization of substituted N-carbamoyl indolines with alkynes is described.
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A four-component reaction of aryldiazonium tetrafluoroborates, sulfur dioxide, 1,2-dibromoethane, and hydrazines

Org. and Biomol. Chem. - 29 August, 2015 - 13:17
Org. Biomol. Chem., 2015, Accepted Manuscript
DOI: 10.1039/C5OB01765C, PaperDanqing Zheng, Yunyan Kuang, Jie Wu
A four-component reaction of aryldiazonium tetrafluoroborates, sulfur dioxide, 1,2-dibromoethane, and hydrazines under metal-free conditions is described, providing a novel and efficient approach to 2-arylsulfonyl hydrazones. This transformation proceeds smoothly via...
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