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Children learn words easier when they are interested in the category to which the word belongs

science campus

Ackermann L, Hepach R.
GSID: dZSA7DW-GSEJ
L Ackermann, R Hepach, N Mani - Developmental science, 2020 - Wiley Online Library

The overall pattern of vocabulary development is relatively similar across children learning different languages. However, there are considerable differences in the words known to individual children. Historically, this variability has been explained in terms of differences in the …

Straightforward Synthesis of 2- and 2,8-Substituted Tetracenes.

Chemistry (Weinheim an der Bergstrasse, Germany)

Woodward S, Ackermann M, Ahirwar SK, Burroughs L, Garrett MR, Ritchie J, Shine J, Tyril B, Simpson K, Woodward P.
PMID: 28417523
Chemistry. 2017 Jun 07;23(32):7819-7824. doi: 10.1002/chem.201701170. Epub 2017 May 19.

A simple regiospecific route to otherwise problematic substituted tetracenes is described. The diverse cores (E)-1,2-Ar

Challenges and Rewards in Medicinal Chemistry Targeting Cardiovascular and Metabolic Diseases.

Chimia

Neidhart W, Ackermann J, Amrein K, Conte A, Hunziker D, Kuhn B, Märki HP, Nettekoven M, Ruf A, Schulz-Gasch T, Mayweg AV.
PMID: 28482972
Chimia (Aarau). 2015 Aug 19;69(7):407-413. doi: 10.2533/chimia.2015.407.

Medicinal chemistry has been transformed by major technological and conceptual innovations over the last three decades: structural biology and bioinformatics, structure and property based molecular design, the concepts of multidimensional optimization (MDO), in silico and experimental high-throughput molecular property...

Photo-induced copper-catalyzed C-H chalcogenation of azoles at room temperature.

Chemical communications (Cambridge, England)

Gandeepan P, Mo J, Ackermann L.
PMID: 28513650
Chem Commun (Camb). 2017 May 30;53(43):5906-5909. doi: 10.1039/c7cc03107f.

Inexpensive copper catalysts enabled direct C-H chalcogenations at ambient temperature by means of photo-induced catalysis. The expedient copper catalysis set the stage for C-S and C-Se bond formation from readily accessible non-volatile elemental chalcogens. The photo-assisted copper catalysis manifold...

Nickel-Catalyzed C-H Chalcogenation of Anilines.

Chemistry (Weinheim an der Bergstrasse, Germany)

Müller T, Ackermann L.
PMID: 27501081
Chemistry. 2016 Sep 26;22(40):14151-4. doi: 10.1002/chem.201603092. Epub 2016 Aug 17.

The C-H thiolation of aniline derivatives was accomplished with a versatile nickel(II) catalyst under ligand-free conditions. The robust nature of the nickel catalysis system was reflected by the C-H thiolation with a good functional group tolerance and an ample...

Manganese(I)-Catalyzed Dispersion-Enabled C-H/C-C Activation.

Chemistry (Weinheim an der Bergstrasse, Germany)

Meyer TH, Liu W, Feldt M, Wuttke A, Mata RA, Ackermann L.
PMID: 28317205
Chemistry. 2017 Apr 24;23(23):5443-5447. doi: 10.1002/chem.201701191. Epub 2017 Apr 03.

C-H/C-C Functionalizations were achieved with the aid of a versatile manganese(I) catalyst. Thus, an organometallic manganese-catalyzed C-H activation set the stage for silver-free C-H/C-C transformations with ample substrate scope and excellent levels of chemo-, site-, and diastereo-selectivities. The robust...

Ruthenium(II)-Catalyzed C-H Oxygenations of Reusable Sulfoximine Benzamides.

Organic letters

Raghuvanshi K, Zell D, Ackermann L.
PMID: 28234011
Org Lett. 2017 Mar 17;19(6):1278-1281. doi: 10.1021/acs.orglett.6b03898. Epub 2017 Feb 24.

C-H oxygenations of synthetically meaningful sulfoximine benzamides were accomplished by a versatile ruthenium catalysis regime. The ruthenium(II) catalyst was characterized by excellent mono- and chemoselectivity as well as positional selectivity via facile base-assisted intramolecular electrophilic substitution-type (BIES) C-H activation....

Ruthenium Oxidase Catalysis for Site-Selective C-H Alkenylations with Ambient O2 as the Sole Oxidant.

Angewandte Chemie (International ed. in English)

Bechtoldt A, Tirler C, Raghuvanshi K, Warratz S, Kornhaaß C, Ackermann L.
PMID: 26489871
Angew Chem Int Ed Engl. 2016 Jan 04;55(1):264-7. doi: 10.1002/anie.201507801. Epub 2015 Oct 22.

Ruthenium(II) oxidase catalysis by direct dioxygen-coupled turnover enabled step-economical oxidative C-H alkenylation reactions at ambient pressure. Versatile ruthenium(II) biscarboxylate catalysts displayed ample substrate scope and proved applicable to weakly coordinating and removable directing groups. The twofold C-H functionalization strategy...

Magnitude and Mechanism of Siderophore-Mediated Competition at Low Iron Solubility in the .

Frontiers in microbiology

Schiessl KT, Janssen EM, Kraemer SM, McNeill K, Ackermann M.
PMID: 29085345
Front Microbiol. 2017 Oct 10;8:1964. doi: 10.3389/fmicb.2017.01964. eCollection 2017.

A central question in microbial ecology is whether microbial interactions are predominantly cooperative or competitive. The secretion of siderophores, microbial iron chelators, is a model system for cooperative interactions. However, siderophores have also been shown to mediate competition by...

Reversed Depth in Anticorrelated Random-Dot Stereograms and the Central-Peripheral Difference in Visual Inference.

Perception

Zhaoping L, Ackermann J.
PMID: 29514559
Perception. 2018 Jan 01;301006618758571. doi: 10.1177/0301006618758571. Epub 2018 Jan 01.

In a random-dot stereogram, the percept of object surfaces in a three-dimensional scene is generated by images presented to left and right eyes that comprise interocularly corresponding random black and white dots. The spatial disparities between the corresponding dots...

Fermi-LAT observations of the gamma-ray burst GRB 130427A.

Science (New York, N.Y.)

Ackermann M, Ajello M, Asano K, Atwood WB, Axelsson M, Baldini L, Ballet J, Barbiellini G, Baring MG, Bastieri D, Bechtol K, Bellazzini R, Bissaldi E, Bonamente E, Bregeon J, Brigida M, Bruel P, Buehler R, Burgess JM, Buson S, Caliandro GA, Cameron RA, Caraveo PA, Cecchi C, Chaplin V, Charles E, Chekhtman A, Cheung CC, Chiang J, Chiaro G, Ciprini S, Claus R, Cleveland W, Cohen-Tanugi J, Collazzi A, Cominsky LR, Connaughton V, Conrad J, Cutini S, D'Ammando F, de Angelis A, DeKlotz M, de Palma F, Dermer CD, Desiante R, Diekmann A, Di Venere L, Drell PS, Drlica-Wagner A, Favuzzi C, Fegan SJ, Ferrara EC, Finke J, Fitzpatrick G, Focke WB, Franckowiak A, Fukazawa Y, Funk S, Fusco P, Gargano F, Gehrels N, Germani S, Gibby M, Giglietto N, Giles M, Giordano F, Giroletti M, Godfrey G, Granot J, Grenier IA, Grove JE, Gruber D, Guiriec S, Hadasch D, Hanabata Y, Harding AK, Hayashida M, Hays E, Horan D, Hughes RE, Inoue Y, Jogler T, Jóhannesson G, Johnson WN, Kawano T, Knödlseder J, Kocevski D, Kuss M, Lande J, Larsson S, Latronico L, Longo F, Loparco F, Lovellette MN, Lubrano P, Mayer M, Mazziotta MN, McEnery JE, Michelson PF, Mizuno T, Moiseev AA, Monzani ME, Moretti E, Morselli A, Moskalenko IV, Murgia S, Nemmen R, Nuss E, Ohno M, Ohsugi T, Okumura A, Omodei N, Orienti M, Paneque D, Pelassa V, Perkins JS, Pesce-Rollins M, Petrosian V, Piron F, Pivato G, Porter TA, Racusin JL, Rainò S, Rando R, Razzano M, Razzaque S, Reimer A, Reimer O, Ritz S, Roth M, Ryde F, Sartori A, Parkinson PM, Scargle JD, Schulz A, Sgrò C, Siskind EJ, Sonbas E, Spandre G, Spinelli P, Tajima H, Takahashi H, Thayer JG, Thayer JB, Thompson DJ, Tibaldo L, Tinivella M, Torres DF, Tosti G, Troja E, Usher TL, Vandenbroucke J, Vasileiou V, Vianello G, Vitale V, Winer BL, Wood KS, Yamazaki R, Younes G, Yu HF, Zhu SJ, Bhat PN, Briggs MS, Byrne D, Foley S, Goldstein A, Jenke P, Kippen RM, Kouveliotou C, McBreen S, Meegan C, Paciesas WS, Preece R, Rau A, Tierney D, van der Horst AJ, von Kienlin A, Wilson-Hodge C, Xiong S, Cusumano G, La Parola V, Cummings JR.
PMID: 24263133
Science. 2014 Jan 03;343(6166):42-7. doi: 10.1126/science.1242353. Epub 2013 Nov 21.

The observations of the exceptionally bright gamma-ray burst (GRB) 130427A by the Large Area Telescope aboard the Fermi Gamma-ray Space Telescope provide constraints on the nature of these unique astrophysical sources. GRB 130427A had the largest fluence, highest-energy photon...

Cobalt(III)-Catalyzed Aryl and Alkenyl C-H Aminocarbonylation with Isocyanates and Acyl Azides.

Angewandte Chemie (International ed. in English)

Li J, Ackermann L.
PMID: 25969403
Angew Chem Int Ed Engl. 2015 Jul 13;54(29):8551-4. doi: 10.1002/anie.201501926. Epub 2015 May 12.

Expedient C-H aminocarbonylations of unactivated (hetero)arenes and alkenes were accomplished with a cobalt(III) catalyst that shows high functional group tolerance. The C-H functionalization occurred with excellent chemo-, site-, and diastereoselectivity and enabled step-economical reactions with isocyanates or acyl azides.

Showing 1 to 12 of 808 entries