Results 51 to 60 of about 42,788 (184)

Mechanically bonded macromolecules [PDF]

open access: yes, 2010
Mechanically bonded macromolecules constitute a class of challenging synthetic targets in polymer science. The controllable intramolecular motions of mechanical bonds, in combination with the processability and useful physical and mechanical properties ...
Benítez, Diego   +5 more
core   +1 more source

Design, synthesis, docking studies and monoamine oxidase inhibition of a small library of 1-acetyl- and 1-thiocarbamoyl-3,5-diphenyl-4,5-dihydro-(1h)-pyrazoles [PDF]

open access: yes, 2019
New N-acetyl/N-thiocarbamoylpyrazoline derivatives were designed and synthesized in high yields to assess their inhibitory activity and selectivity against human monoamine oxidase A and B.
Carradori, Simone   +8 more
core   +2 more sources

Parachor and Ring Structure. Part II. The Spatial Configuration of Bridged-ring Compounds.

open access: yes, 1935
Parachor and Ring Structure. Part II. The Spatial Configuration of Bridged-ring Compounds.
openaire   +1 more source

Enzymatic functionalization of carbon-hydrogen bonds [PDF]

open access: yes, 2011
The development of new catalytic methods to functionalize carbon–hydrogen (C–H) bonds continues to progress at a rapid pace due to the significant economic and environmental benefits of these transformations over traditional synthetic methods.
Arnold, Frances H.   +2 more
core   +1 more source

Switchable organocatalytic enantioselective sulfenocyclization of cyclohexadienes enabling chemodivergent access to chiral bicyclo[m.n.1] ring systems

open access: yesNature Communications
The precise control over regio- and stereoselectivity from the same substrate represents a significant challenge in organic chemistry. Herein, a switchable organocatalytic enantioselective carbosulfenylation/sulfenolactonization of cyclohexa-1,4-dienes ...
Bing-Qian Zhang   +5 more
doaj   +1 more source

Synthesis, structures and cytotoxicity studies of p-sulfonatocalix[4]arene lanthanide complexes [PDF]

open access: yes, 2016
A number of p-sulfonatocalix[4]arene complexes of the lanthanides (Tb, Gd, and Eu) have been prepared, some in the presence of tetraazamacrocycle 1,4,7,10-tetraazacyclododecane-1,4,7-triacetic acid (DO3A), and fully characterised.
Archibald, Stephen J.   +6 more
core   +2 more sources

Towards Construction of the “Periodic Table” of 1-Methylbenzotriazole

open access: yesInorganics
Metal complexes of benzotriazole-type ligands continue to attract the intense interest of many inorganic chemistry groups around the world for a variety of reasons, including their aesthetically beautiful structures, physical properties and applications.
Christina Stamou   +4 more
doaj   +1 more source

Uprolides N, O and P from the Panamanian Octocoral Eunicea succinea. [PDF]

open access: yes, 2016
Three new diterpenes, uprolide N (1), uprolide O (2), uprolide P (3) and a known one, dolabellane (4), were isolated from the CH₂Cl₂-MeOH extract of the gorgonian octocoral Eunicea succinea, collected from Bocas del Toro, on the Caribbean coast of Panama.
Fernandez, Patricia L   +7 more
core   +2 more sources

Interplay between structure and magnetism in the low-dimensional spin system $K(C_8H_{16}O_4)_2CuCl_3{*}H_2O$

open access: yes, 2017
Materials based on a crown ether complex together with magnetic ions, especially Cu(II), can be used to synthesize new low dimesional quantum spin systems. We have prepared the new crown ether complex Di-\mu-chloro-bis(12-crown-4)-aquqdichloro-copper(II)-
Assmus, Wolf   +8 more
core   +1 more source

Synthesis and Structure of 1,2-Dimethylene[2.10]metacyclophane and Its Conversion into Chiral [10]Benzenometacyclophanes: Synthesis and Structure of 1,2-Dimethylene[2.10]metacyclophane and Its Conversion into Chiral [10]Benzenometacyclophanes [PDF]

open access: yes, 2017
Bromination of 5,21-di-tert-butyl-8,24-dimethoxy-1,2-dimethyl[2.10]metacyclophan-1-ene (MCP-1-ene; 1) with benzyltrimethylammonium tribromide exclusively afforded 1,2-bis(bromomethyl)-5,21-di-tert-butyl-8,24-dimethoxy[2.10]MCP-1-ene (2). Debromination of
Akther, Thamina   +8 more
core   +3 more sources

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