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11月, 2013の投稿を表示しています
Article Selective Aerobic Oxidation Mediated by TiO 2  Photocatalysis ACS ActiveView PDF Hi-Res Print, Annotate, Reference QuickView PDF  [668 KB] PDF w/ Links [463 KB] Full Text HTML Abstract Figures Reference QuickView Add to ACS ChemWorx Xianjun Lang   ,  Wanhong Ma   ,  Chuncheng Chen   , Hongwei Ji   , and  Jincai Zhao   * Key Laboratory of Photochemistry, Beijing National Laboratory for Molecular Sciences,  Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190,  China Acc. Chem. Res. , Article ASAP DOI:  10.1021/ar4001108 Publication Date (Web): October 28, 2013 Copyright © 2013 American Chemical Society Abstract TiO 2  is one of the most studied metal oxide photocatalysts and has unparal-leled efficiency and stability. This cheap, abundant, and non-toxic material has the potential to address future environmental and energy concerns. Understandi...
Edge Article Radical reactivity of the Fe( III )/( II ) tetramesitylporphyrin couple: hydrogen atom transfer, oxyl radical dissociation, and catalytic disproportionation of a hydroxylamine Thomas R. Porter a  and     James M. Mayer * a    Show Affiliations Chem. Sci. , 2014, Advance Article DOI:  10.1039/C3SC52055B Received 23 Jul 2013, Accepted 14 Oct 2013 First published online 16 Oct 2013 | | Share on citeulike | Share on facebook | Share on twitter | | More PDF Rich HTML    Send PDF to Kindle Download Citation BibTex   EndNote   MEDLINE   ProCite   ReferenceManager   RefWorks   RIS   Request Permissions Abstract Cited by Related Content   The chemistry of low-valent iron porphyrin complexes with oxyl radical reagents has been explored. ( meso -Tetramesityl porphyrinato) iron( III ) hydroxide, (TMP)Fe III (OH) reacts ...
Article Geometric and Electronic Structure of the Mn(IV)Fe(III) Cofactor in Class Ic Ribonucleotide Reductase: Correlation to the Class Ia Binuclear Non-Heme Iron Enzyme ACS ActiveView PDF Hi-Res Print, Annotate, Reference QuickView PDF  [3015 KB] PDF w/ Links [701 KB] Full Text HTML Abstract Supporting Info -> Figures Reference QuickView Add to ACS ChemWorx Yeonju Kwak   † ,  Wei Jiang   ‡ § ,  Laura M. K. Dassama ‡ ,  Kiyoung Park   † ,  Caleb B. Bell   ,  III † ,  Lei V. Liu   † , Shaun D. Wong   † ,  Makina Saito   ,  Yasuhiro Kobayashi   ,  Shinji Kitao   ,  Makoto Seto   , Yoshitaka Yoda   ,  E. Ercan Alp   # ,  Jiyong Zhao   # ,  J. Martin Bollinger   ,  Jr. * ‡ § ,  Carsten Krebs   * ‡ § , and Edward I. Solomon   * † †  Department of Chemistry,  Stanford University , Stanf...
Full Paper You have full text access to this content Formation of Substituted Oxa- and Azarhodacyclobutanes Alexander Dauth 1 ,  Carla Rigling 2 , Jennifer Tsoung 3 ,  Prof. Dr. Jennifer A. Love 1,* Article first published online: 6 NOV 2013   Keywords: alkene complexes; metallacycle; oxidation; regioselectivity; rhodium Abstract The preparation of substituted oxa- and azarhodacyclobutanes is reported. After exchange of ethylene with a variety of unsymmetrically and symmetrically substituted alkenes, the corresponding rhodium–olefin complexes were oxidized with H 2 O 2  and PhINTs (Ts= p -toluenesulfonyl) to yield the substituted oxa- and azarhodacyclobutanes, respectively. Oxarhodacyclobutanes could be prepared with excellent selectivity for incorporation of the oxygen atom on the more substituted carbon atom of the alkene. At the same time, azarhodacyclobutanes showed good-to-excellent selectivity for heteroatom incorporation on ...
Article Theoretical Study of Mononuclear Nickel(I), Nickel(0), Copper(I), and Cobalt(I) Dioxygen Complexes: New Insight into Differences and Similarities in Geometry and Bonding Nature ACS ActiveView PDF Hi-Res Print, Annotate, Reference QuickView PDF  [2476 KB] PDF w/ Links [639 KB] Full Text HTML Abstract Supporting Info -> Figures Reference QuickView Add to ACS ChemWorx Yue Chen   and  Shigeyoshi Sakaki   * Fukui Institute for Fundamental Chemistry,  Kyoto University , Takano-Nishihiraki-cho 34-4, Sakyo-ku, Kyoto 606-8103,  Japan Inorg. Chem. , Article ASAP DOI:  10.1021/ic402059b Publication Date (Web): November 6, 2013 Copyright © 2013 American Chemical Society *Tel.:  +81-75-711-7907 . Fax:  +81-75-711-4757 . E-mail: sakaki.shigeyoshi.47e@st.kyoto-u.ac.jp . Synopsis The transition-metal dioxygen complexes (N N)M(O2) (M = Co, Ni, and Cu; N N = β-diketiminate) and (Ph3P)2Ni(O2) were...
Ynamides in Ring Forming Transformations ACS ActiveView PDF Hi-Res Print, Annotate, Reference QuickView PDF [4886 KB] PDF w/ Links [2137 KB] Full Text HTML Abstract Figures Reference QuickView Add to ACS ChemWorx Xiao-Na Wang † , Hyun-Suk Yeom † , Li-Chao Fang † , Shuzhong He † , Zhi-Xiong Ma † , Brant L. Kedrowski * ‡ , and Richard P. Hsung * † † Division of Pharmaceutical Sciences and Department of Chemistry, University of Wisconsin , Madison, Wisconsin 53705, United States ‡ Department of Chemistry, University of Wisconsin , Oshkosh, Wisconsin 54901, United States Acc. Chem. Res. , Article ASAP DOI: 10.1021/ar400193g Publication Date (Web): October 28, 2013   Abstract The ynamide functional group activates carbon–carbontriple bonds through an attached nitrogen atom that bears an electron-withdrawing group. As a result, the alkyne has both electrophilic and nucleophilic properties. Through t...