Results 101 to 110 of about 88,113 (258)

A Modular Synthesis of C5‐Sulfenyl Thiazoles via an Intermolecular Pummerer Rearrangement: An Underexplored Scaffold for Medicinal Chemistry

open access: yesAngewandte Chemie, EarlyView.
Modular access to underexplored C5‐sulfenyl thiazoles via an intermolecular Pummerer rearrangement is reported. The methodology exhibits a broad functional group tolerance enabling the seamless design of trisubstituted thiazole cores bearing a sulfur handle for further elaboration.
Joe L. Smy   +5 more
wiley   +2 more sources

Adaptive Hydrogenation of Alkynes Using CO as a Molecular Trigger to Selectively Produce Alkanes or Z‐Alkenes

open access: yesAngewandte Chemie, EarlyView.
One catalyst for two products: CO acts as a molecular trigger for adaptive alkyne hydrogenation using supported Pd nanoparticles. The catalyst reversibly switches between the formation of alkanes under H2 and Z‐alkenes under H2/CO for 37 structurally diverse alkynes.
Manisha Durai   +7 more
wiley   +2 more sources

Ruthenium‐Catalyzed Nitrile‐Acrylate Reductive Coupling by 2‐Propanol: Synthesis of Enantioenriched β‐Amino Esters

open access: yesAngewandte Chemie, EarlyView.
The first nitrile reductive couplings beyond stoichiometric metals or metalloids are described. Using a ruthenium catalyst derived from RuHCl(CO)(PPh3)3 and Cy‐BIPHEP, 2‐propanol‐mediated reductive coupling of phenyl acrylate with aromatic or aliphatic nitriles delivers α,β‐unsaturated β‐amino esters.
Sebastian Höthker   +3 more
wiley   +2 more sources

Tonsillar tuberculosis, with primary pulmonary focus: A Case Report

open access: yesHorizonte Médico, 2015
Tuberculosis is an infectious disease that affects various organs and tissues, with greater tropism for lung disease, gastrointestinal and central nervous system tissue and even bone.
Juan Antonio Lugo Machado   +1 more
doaj  

No2 mad

open access: yes, 2014
Σημείωση: το κυρίως κείμενο και το συνοδευτικό υλικό του διατίθεται σε ξεχωριστό ενιαίο αρχείο.
openaire   +1 more source

Atmospheric dry and wet deposition of sulphur and nitrogen species and assessment of critical loads of acidic deposition exceedance in South Africa

open access: yesSouth African Journal of Science, 2011
We tested the hypothesis that acidic atmospheric pollution deposition, originating from the South African central industrial area, poses an environmental threat across a larger region within the dispersal footprint.
Miroslav Josipovic   +4 more
doaj  

Home - About - Disclaimer - Privacy