Royal Society of Chemistry

Quantum mechanistic insights on aryl propargyl ether Claisen rearrangement

Org. and Biomol. Chem. - 2 June, 2014 - 22:54

Org. Biomol. Chem., 2014, 12,4163-4171
DOI: 10.1039/C4OB00388H, PaperVenkatesan Srinivasadesikan, Jiun-Kuang Dai, Shyi-Long Lee
The mechanism of aryl propargyl ether Claisen rearrangement in gas and solvent phase was investigated using DFT methods.
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Organocatalytic asymmetric decarboxylative cyanomethylation of isatins using L-proline derived bifunctional thiourea

Org. and Biomol. Chem. - 2 June, 2014 - 22:54

Org. Biomol. Chem., 2014, 12,4186-4191
DOI: 10.1039/C4OB00271G, PaperV. Pratap Reddy Gajulapalli, Poopathy Vinayagam, Venkitasamy Kesavan
Asymmetric decarboxylative cyanomethylation of isatins using L-proline derived bifunctional thiourea to access cyanomethylated 3-hydroxyoxindoles in good yields and enantioselectivities.
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The diene-transmissive hetero-Diels-Alder reaction of 2-vinyl [small alpha],[small beta]-unsaturated aldimines: stereoselective synthesis of hexahydroquinazolin-2-ones

Org. and Biomol. Chem. - 2 June, 2014 - 22:54

Org. Biomol. Chem., 2014, 12,4061-4064
DOI: 10.1039/C4OB00224E, CommunicationSatoru Kobayashi, Kenji Kudo, Ai Ito, Satoru Hirama, Takashi Otani, Takao Saito
The tandem Diels-Alder methodology of cross-conjugated 1-azatrienes for synthesis of crossed bis-cycloadducts with high chemo-, regio- and stereoselectivities is described.
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Improved hemicryptophane hosts for the stereoselective recognition of glucopyranosides

Org. and Biomol. Chem. - 2 June, 2014 - 22:54

Org. Biomol. Chem., 2014, 12,4211-4217
DOI: 10.1039/C4OB00156G, PaperAline Schmitt, Olivier Perraud, Elina Payet, Bastien Chatelet, Benjamin Bousquet, Marion Valls, Daniele Padula, Lorenzo Di Bari, Jean-Pierre Dutasta, Alexandre Martinez
Slight changes in the chiral environment of enantiopure hemicryptophanes improve the stereoselective recognition of [small alpha] and [small beta] anomers of glucopyranosides.
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Gold-catalyzed tandem Diels-Alder reactions of enynals/enynones with alkenes: generation and trapping of cyclic o-QDMs

Org. and Biomol. Chem. - 2 June, 2014 - 22:54

Org. Biomol. Chem., 2014, 12,4104-4111
DOI: 10.1039/C4OB00321G, PaperShifa Zhu, Lang Hu, Huanfeng Jiang
Gold-catalyzed generation of the highly reactive cyclic o-QDM species and application in preparation of structurally unique propeller-like molecules.
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Pentaarylbiimidazole, PABI: an easily synthesized fast photochromic molecule with superior durability

Chem. Commun. - 2 June, 2014 - 02:54

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC03137G, CommunicationHiroaki Yamashita, Jiro Abe
We have developed a new type of fast photochromic imidazole dimer, pentaarylbiimidazole (PABI), which shows a few [small mu ]s fast photochromism having the high fatigue resistance against light irradiation.
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Synthesis, structure and reactivity of a 1-bromoalumole

Chem. Commun. - 2 June, 2014 - 02:54

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC03470H, CommunicationTatsuya Wasano, Tomohiro Agou, Takahiro Sasamori, Norihiro Tokitoh
A stable 1-bromoalumole has been synthesized, and its structure and reactivities against nucleophiles have been investigated.
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Palladium-catalyzed formal arylacylation of allenes employing acid chlorides and arylboronic acids

Chem. Commun. - 2 June, 2014 - 02:54

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC03173C, CommunicationKenta Tatsumi, Tetsuaki Fujihara, Jun Terao, Yasushi Tsuji
Palladium-catalyzed formal arylacylation of allenes using acid chlorides and arylboronic acids proceeded regio- and stereoselectively.
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Mitochondria-targeted colorimetric and fluorescent probes for hypochlorite and their applications for in vivo imaging

Chem. Commun. - 2 June, 2014 - 02:54

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC02673J, CommunicationJi-Ting Hou, Ming-Yu Wu, Kun Li, Jin Yang, Kang-Kang Yu, Yong-Mei Xie, Xiao-Qi Yu
Two probes that exhibited high sensitivity and excellent selectivity toward ClO- among ROS with a rapid response time were presented, which could selectively detect ClO- in the mitochondria of the cells.
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Transfer printing of metal nanoring and nanodot arrays for use in catalytic reactions

Chem. Commun. - 2 June, 2014 - 02:54

Chem. Commun., 2014, Advance Article
DOI: 10.1039/C4CC02939A, CommunicationSang Ho Lee, Sung Mook Choi, Seungha Yoon, Huisu Jeong, Gun Young Jung, Beong Ki Cho, Won Bae Kim
Printable metal nanoring and nanodot catalyst arrays were developed using the stamping platforms with the ring- and dot-shaped tips.
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Ruthenium catalysed C-H bond borylation

Chem. Commun. - 2 June, 2014 - 02:54

Chem. Commun., 2014, 50,6782-6784
DOI: 10.1039/C4CC02096K, CommunicationJose A. Fernandez-Salas, Simone Manzini, Lorenzo Piola, Alexandra M. Z. Slawin, Steven P. Nolan
An easily prepared series of phenylindenyldihydridosilyl ruthenium complexes (2a-2d) was obtained by reaction of tertiary silanes with the commercially-available [RuCl(3-phenylindenyl)(PPh3)2] (1).
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Connection of zinc paddle-wheels in a pto-type metal-organic framework with 2-methylimidazolate and subsequent incorporation of charged organic guests

Chem. Commun. - 2 June, 2014 - 02:54

Chem. Commun., 2014, 50,6785-6788
DOI: 10.1039/C4CC01501K, CommunicationNakeun Ko, Kyungkyou Noh, Siyoung Sung, Hye Jeong Park, Sang Youn Park, Jaheon Kim
2-Methylimidazolate (mIm) connects the Zn2 paddle-wheels in a pto type framework, leading to an anionic metal-organic framework.
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Introducing charge transfer functionality into prebiotically relevant [small beta]-sheet peptide fibrils

Chem. Commun. - 2 June, 2014 - 02:54

Chem. Commun., 2014, 50,6733-6736
DOI: 10.1039/C4CC00717D, CommunicationDenis Ivnitski, Moran Amit, Boris Rubinov, Rivka Cohen-Luria, Nurit Ashkenasy, Gonen Ashkenasy
Amphiphilic peptide possessing non-natural aromatic groups forms fibrils consisting long range [small pi]-stacking interactions. Being similar to previously studied replicator the peptide is suggested as future component in functional self-synthesizing materials.
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Multivalent comb-type aptamer-siRNA conjugates for efficient and selective intracellular delivery

Chem. Commun. - 2 June, 2014 - 02:54

Chem. Commun., 2014, 50,6765-6767
DOI: 10.1039/C4CC01620C, CommunicationHyundong Yoo, Hyosook Jung, Seung An Kim, Hyejung Mok
In this study, a simple and efficient strategy for selective intracellular delivery of RNA therapeutics into target cancer cells was designed using direct complementary base pairing between chemically conjugated multimeric antisense strands and aptamer-incorporating sense strands.
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Facile access to 3,5-symmetrically disubstituted 1,2,4-thiadiazoles through phosphovanadomolybdic acid catalyzed aerobic oxidative dimerization of primary thioamides

Chem. Commun. - 2 June, 2014 - 02:54

Chem. Commun., 2014, 50,6748-6750
DOI: 10.1039/C4CC02313G, CommunicationKazuhisa Yajima, Kazuya Yamaguchi, Noritaka Mizuno
Phosphovanadomolybdic acids can efficiently catalyze aerobic oxidative dimerization of various kinds of primary thioamides.
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A new type of carbon nitride-based polymer composite for enhanced photocatalytic hydrogen production

Chem. Commun. - 2 June, 2014 - 02:54

Chem. Commun., 2014, 50,6762-6764
DOI: 10.1039/C4CC00397G, CommunicationZheng Xing, Zhigang Chen, Xu Zong, Lianzhou Wang
This communication reports on a new type of composite photocatalysts using a conducting polymer PEDOT as a hole transport pathway for promoting charge separation in photocatalytic hydrogen production.
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[small pi]-Extended tetrathiafulvalene BODIPY (ex-TTF-BODIPY): a redox switched "on-off-on" electrochromic system with two near-infrared fluorescent outputs

Chem. Commun. - 2 June, 2014 - 02:54

Chem. Commun., 2014, 50,6758-6761
DOI: 10.1039/C4CC02567A, CommunicationNathan L. Bill, Jong Min Lim, Christina M. Davis, Steffen Bahring, Jan O. Jeppesen, Dongho Kim, Jonathan L. Sessler
Ex-TTF-BODIPY functions as a near-IR electrochromic and electrofluorochromic switch, displaying redox controlled "on-off-on" emission features.
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Flexible patterned micro-electrochemical capacitors based on PEDOT

Chem. Commun. - 2 June, 2014 - 02:54

Chem. Commun., 2014, 50,6789-6792
DOI: 10.1039/C4CC02280G, CommunicationLishuang Fan, Naiqing Zhang, Kening Sun
We reported fabrication of patterned flexible MECs using inkjet printing. The obtained flexible MECs exhibited a very high specific capacitance of 6.4 mF cm-2, and revealed long-term cycling stability.
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Rapid construction of an effective antifouling layer on a Au surface via electrodeposition

Chem. Commun. - 2 June, 2014 - 02:54

Chem. Commun., 2014, 50,6793-6796
DOI: 10.1039/C4CC01329H, CommunicationBor-Ran Li, Mo-Yuan Shen, Hsiao-hua Yu, Yaw-Kuen Li
An electrodeposited zwitterion layer enables reduction of non-specific adsorption up to 95% on a gold surface from fetal bovine serum.
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A simple access to N-(un)substituted isoquinolin-1(2H)-ones: unusual formation of regioisomeric isoquinolin-1(4H)-ones

Chem. Commun. - 2 June, 2014 - 02:54

Chem. Commun., 2014, 50,6797-6800
DOI: 10.1039/C4CC01580K, CommunicationR. Gangadhara Chary, G. Dhananjaya, K. Vara Prasad, S. Vaishaly, Y. S. S. Ganesh, Balakrishna Dulla, K. Shiva Kumar, Manojit Pal
We report ligand/additive/Pd-free Cu-mediated unique synthesis of isoquinolin-1(2H)-ones and isoquinolin-1(4H)-ones.
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