Itoh Group Literature Review

Reusable manganese compounds containing pyrazole-based ligands for olefin epoxidation reactions Ester Manrique , a      Albert Poater , a      Xavier Fontrodona , a    Miquel Solà , a      Montserrat Rodríguez * a  and     Isabel Romero * a    Show Affiliations Dalton Trans. , 2015, Advance Article DOI:  10.1039/C5DT02787J Received 22 Jul 2015, Accepted 11 Sep 2015 First published online 14 Sep 2015 |  | 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 Metrics   We describe the synthesis of new manganese( II ) and manganese( III ) complexes containing the bidentate ligands 2-(3-pyrazolyl)pyridine, pypz-H, and 3(5)-(2-hydroxyphenyl)pyrazole, HOphpz-H, with formula [MnX 2 (pypz-H) 2 ] (X = Cl − ,  1 , CF 3

Angew.andte Reviews Angew. Chem. Int. Ed. 2015, 54, 3351 – 3367 Hans Renata, Z. Jane Wang, and Frances H. Arnold Division of Chemistry and Chemical Engineering California Institute of Technology 1200 E. California Blvd. MC 210-41, Pasadena, CA 91125 (USA) http://onlinelibrary.wiley.com/doi/10.1002/anie.201409470/pdf Abstruction High selectivity and exquisite control over the outcome of reactions entice chemists to use biocatalysts in organic synthesis. However, many useful reactions are not accessible because they are not in nature s known repertoire. In this Review, we outline an evolutionary approach to engineering enzymes to catalyze reactions not found in nature. We begin with examples of how nature has discovered new catalytic functions and how such evolutionary progression has been recapitulated in the laboratory starting from extant enzymes. We then examine non-native enzyme activities that have been exploited for chemical synthesis, with an emphasis on reac

New Rh 2 (II,II) Architecture for the Catalytic Reduction of H + Travis A. White † ,  Suzanne E. Witt † ,  Zhanyong Li ‡ ,  Kim R. Dunbar * ‡ , and  Claudia Turro * † †  Department of Chemistry and Biochemistry,  The Ohio State University , Columbus, Ohio 43210,  United States ‡  Department of Chemistry,  Texas A&M University , College Station, Texas 77843,  United States Inorg. Chem. , Article ASAP DOI:  10.1021/acs.inorgchem.5b01823 Publication Date (Web): September 25, 2015 Copyright © 2015 American Chemical Society *(K.R.D.) E-mail:  dunbar@mail.chem.tamu.edu ., *(C.T.) E-mail:  turro.1@osu.edu . http://pubs.acs.org/doi/10.1021/acs.inorgchem.5b01823 Synopsis Formamidinate-bridged Rh 2 II,II  complexes with coordinated bidentate diimine ligands electrocatalytically reduce H +  to H 2  in CH 3 COOH/DMF solutions using a glassy carbon electrode. The choice of diimine ligand is shown to impact the rate of H 2  production, with phenanthroline ligands fu

Turning a New Leaf on Metal-TMC Chemistry: Ni II (TMC) Acetylides Sarah F. Tyler † ,  Sean N. Natoli † ,  Bess Vlaisavljevich ‡ ,  Phillip E. Fanwick † , and  Tong Ren * † †  Department of Chemistry,  Purdue University , West Lafayette, Indiana 47907,  United States ‡  Department of Chemical & Biomolecular Engineering,  University of California , Berkeley, California 94720, United States Inorg. Chem. , Article ASAP DOI:  10.1021/acs.inorgchem.5b01883 Publication Date (Web): September 28, 2015 Copyright © 2015 American Chemical Society *E-mail:  tren@purdue.edu . http://pubs.acs.org/doi/10.1021/acs.inorgchem.5b01883 Synopsis Distinctive nickel(II) acetylide compounds with the tetramethyl-1,4,8,11-tetraazacyclotetradecane supporting ligand have been prepared as the first examples of metal-TMC acetylides. Abstract Novel [Ni(TMC)C≡CY] + -type compounds  1 – 4  [TMC = 1,4,8,11-tetramethyl-1,4,8,11-tetraazacyclotetradecane; Y = SiMe 3  ( 1 ), Si

Farrukh Vohidov, a Sarah E. Knudsen, a Paul G. Leonard, b Jun Ohata, a Michael J. Wheadon, a Brian V. Popp, c John E. Ladbury d and Zachary T. Ball * a a Department of Chemistry, Rice University, 6100 Main St., Houston, Texas, USA. E-mail: zb1@rice.edu b Department of Genomic Medicine, Core for Biomolecular Structure and Function, University of Texas, M.D. Anderson Cancer Center, Houston, Texas, USA c Eugene Bennett Department of Chemistry, West Virginia University, 217 Clark Hall, Morgantown, West Virginia, USA d Department of Molecular and Cellular Biology, University of Leeds, LS2 9JT, UK Chem. Sci., 2015, 6, 4778-4783 Received 2nd May 2015 Accepted 3rd June 2015 DOI: 10.1039/c5sc01602a  http://pubs.rsc.org/en/content/articlelanding/2015/sc/c5sc01602a?iscitedby=True#!divAbstract Abstract Src-family kinases (SFKs) play important roles in human biology and are key drug targets as well. However, achieving selective inhibition of indiv

Angewandte Chemie International Edi... by Jean-Philippe Porcher, Thibault Fogeron, Maria Gomez-Mingot, Etienne Derat, Lise-Marie Chamoreau, Yun Li, Marc Fontecave  /  3d  //  keep unread  //  hide  //  preview Article first published online: 25 SEP 2015 DOI: 10.1002/anie.201505607   http://onlinelibrary.wiley.com/doi/10.1002/anie.201505607/abstract Abstract A molybdenum–dithiolene–oxo complex was prepared as a model of some active sites of Mo/W-dependent enzymes. The ligand, a quinoxaline–pyran-fused dithiolene, mimics molybdopterin present in these active sites. For the first time, this type of complex was shown to be active as a catalyst for the photoreduction of protons with excellent turnover numbers (500) and good stability in aqueous/organic media and for the electroreduction of protons in acetonitrile with remarkable rate constants (1030 s −1 at −1.3 V versus Ag/AgCl). DFT calculations provided insight into the catalytic cycle of