ISSN 0268-2605
Xian Tao, Ke-Cheng Shen, Qing-Yun Tang, Meng Feng, Jiang-Tao Fang, Yu-Long Wang and Ying-Zhong Shen
Article first published online: 21 JUN 2012 | DOI: 10.1002/aoc.2863
New N-silver(I) acetylbenzamide complexes of type Ln⋅AgNC9H8O2 were prepared. The molecular structure of 2b has been determined by X-ray single crystal analysis. New N-silver(I) acetylbenzamide complexes has a four-membered ring, which could influence their chemical and physical properties and modulat the volatility. Metal organic chemical vapor deposition (MOCVD) experiments were carried out successfully at 400 °C and 450 °C using 2e as precursor for the deposition of silver films, respectively.
Muhammad Moazzam Naseer and Shahid Hameed
Article first published online: 6 JUN 2012 | DOI: 10.1002/aoc.2865
An efficient palladium-catalysed double Suzuki cross-coupling reaction of heteroarylboronic acid with aromatic dibromide provided dielectrophile with alkoxy side-chain and two reactive chlorides. The reactivity of this dielectrophile was exemplified by reaction with aniline and phenol, both a nitrogen and oxygen nucleophile, respectively.
Dorette S. Tromp, Peter Hauwert and Cornelis J. Elsevier
Article first published online: 21 JUN 2012 | DOI: 10.1002/aoc.2866
New N-Alkyl-substituted imidazolium salts as well as a series of their corresponding [Pd(NHC)(MA)2] complexes have been obtained by three routes in good yield. The previously reported synthesis for the analogous N-aryl substituted [Pd(NHC)(MA)2] complexes has been improved. The N-alkyl-substituted [Pd(NHC)(MA)2] complexes are thermally more labile than their N-aryl counterparts.
Kun Wang, Tao Yi, Xiaojun Yu, Xueli Zheng, Haiyan Fu, Hua Chen and Ruixiang Li
Article first published online: 6 JUN 2012 | DOI: 10.1002/aoc.2869
An easily synthesized tetraphosphine (1) was successfully used in the Suzuki-Miyaura reaction of aryl and heteroaryl bromides. A high turnover number of 750,000 was achieved at palladium loading as low as 1 ppm. The catalytic system exhibited good stability and longevity, and a broad scope of substrates was tolerated.
Marija Mirković, Drina Janković, Sanja Vranješ-Đurić, Magdalena Radović, Dragana Stanković, Dušan Mijin and Nadežda Nikolić
Article first published online: 21 JUN 2012 | DOI: 10.1002/aoc.2870
Two novel diamine-dioxime ligands, 4,7-diaza-3,8-diethyldecane-2,9-dione bis oxime and 4,9-diaza-3,10-diethyldodecane-2,11-dione bis oxime, were synthesized in order to develop new brain perfusion imaging agents, based on 99mTc(V)-complexes. A significant brain uptake of 99mTc-complexes as diastereoisomeric mixtures was 2.1% ID and 1.8% ID, 2 min after injection. The present study suggests that both ligands are promising candidates as new 99mTc-based brain imaging agents.
Gladiola Tantaru, Maria-Cristina Popescu, Veronica Bild, Antonia Poiata, Gabriela Lisa and Cornelia Vasile
Article first published online: 6 JUN 2012 | DOI: 10.1002/aoc.2872
Chemical structure of new Schiff Bases derived from 2-(salicylidene) aminopyridine and its Cooper(II) complexes was confirmed by elemental, spectral (IR, UV-VIS and 1H NMR) and thermal analyses. The antimicrobial activity was tested with S. aureus, S. aureus meticilin-rezistent, B. cereus, B. subtilis, E. coli, C. albicans, Klebsiella spp. and was compared with the activity of the reference drugs such as Chloramphenicol, Tetracyclin, Ophloxacin and Nistatine.
Javier Vallejo-Montesinos, Antonio Villegas, Araceli Jacobo-Azuara, J. Merced Martínez, Eulalia Ramírez-Oliva, Araceli Romero-Izquierdo and Jorge Cervantes
Article first published online: 6 JUN 2012 | DOI: 10.1002/aoc.2873
Cationic Ring Opening Polymerization of hexamethylcyclotrisiloxane and octamethylcyclotetrasiloxane was performed using acid treated silica-alumina as inorganic acidic catalyst obtained by a simple route from precipitation of aluminum sulfate solutions. Natural bentonite was applied for the same purpose.
Rajiv Trivedi, Sadanala Bhavya Deepthi, Lingamallu Giribabu, Balasubramanian Sridhar, Pombala Sujitha, Chityal Ganesh Kumar and Kallaganti V. S. Ramakrishna
Article first published online: 6 JUN 2012 | DOI: 10.1002/aoc.2874
Synthesis, structure, electronic spectroscopy, electrochemistry and biological activity for Ferrocene-carbohydrate amdies prepared from five-and six member isopropylidene protected sugars are described.
Xiaoyun Ma, Ying He, Pengcheng Wang and Ming Lu
Article first published online: 21 JUN 2012 | DOI: 10.1002/aoc.2876
An efficient method for selective hydration of nitriles into amides by employing acetaldoxime and simple transition-metal catalysts in water is described. Heterocyclic nitriles with heteroatom lone pair positioned ortho to the nitrile group show high reactivity and could even be hydrated by catalyst and water in the absence of acetaldoxime.
Santiago Gómez-Ruiz, Tatjana P. Stanojković and Goran N. Kaluđerović
Article first published online: 21 JUN 2012 | DOI: 10.1002/aoc.2878
Metal complexes with the α,α′-dimercapto-o-xylene ligand have been synthesized. Their cytotoxicity has been studied in vitro against HeLa, Fem-x and K562 human cancer cell lines. Cell death in HeLa and Fem-x cell lines treated with metal complexes, with the cells undergoing G1 and G2/M arrest and inducting apoptosis in these phases of the cell cycle has been observed.
Biological activity of selected boronic acids and their derivatives (pages 390–393)
Agnieszka Adamczyk-Woźniak, Olena Komarovska-Porokhnyavets, Bogusław Misterkiewicz, Volodymyr P. Novikov and Andrzej Sporzyński
Article first published online: 21 JUN 2012 | DOI: 10.1002/aoc.2880
A series of substituted phenylboronic acids and benzoxaboroles were evaluated for their antimicrobial activity. Compound possessing two oxaborole fragments reveals the highest biological activity.
Book Reviews
Martin Wills
Article first published online: 6 JUN 2012 | DOI: 10.1002/aoc.2883