Results 21 to 30 of about 1,486,006 (344)

Organic chemistry [PDF]

open access: yesAnnual Reports on the Progress of Chemistry, 1908
n ...
Desch, Cecil H., Morgan, Gilbert T.
openaire   +2 more sources

Sustainable radical approaches for cross electrophile coupling to synthesize trifluoromethyl- and allyl-substituted tert-alcohols

open access: yesiScience, 2021
Summary: Trifluoromethylated molecules have gained privileged recognition among the medicinal and pharmaceutical chemists. Sustainable photoredox- and electrochemical processes were employed to facilitate the relatively less explored radical cross ...
Muhammad Awais Ashraf   +4 more
doaj  

Litter Quality of Populus Species as Affected by Free-Air CO2 [PDF]

open access: yes, 2009
The effect of elevated CO2 and nitrogen fertilization on the molecular chemistry of litter of three Populus species and associated soil organic matter (SOM) was investigated by pyrolysis-gas chromatography/mass spectrometry.
Buurman, P., Hoosbeek, M.R., Vermue, E.
core   +4 more sources

Fluorinated tetrapodal anion transporters

open access: yesiScience, 2023
Summary: Synthetic anion transporters show potential in treating life-threatening diseases like cystic fibrosis and cancer. However, with increasingly complex transporter architectures designed to control anion binding and transport, it is important to ...
Alexander M. Gilchrist   +4 more
doaj  

Homologation of aryl ketones to long-chain ketones and aldehydes via C–C bond cleavage

open access: yesiScience, 2022
Summary: Transition metal-catalyzed C–C bond cleavage is a powerful tool for the reconstruction of a molecular skeleton. We report herein the multi-carbon homologation of aryl ketones to long-chain ketones and aldehydes via ligand-promoted Ar−C(O) bond ...
Xing Wang   +4 more
doaj  

Copper-catalyzed oxidative dehydrogenative dearomatization of indole derivatives: A new strategy to construct spirocyclic indolenines

open access: yesiScience, 2022
Summary: A concise copper-catalyzed oxidative dehydrogenative dearomatization of indole derivatives for the direct synthesis of spirocyclic indolenines containing fluorene and indeno[2,1-b]indole groups has been established.
Junli Chao   +6 more
doaj  

Copper-mediated aerobic trifluoromethyltelluration of boronic acids with [Me4N][TeCF3]

open access: yesiScience, 2022
Summary: A copper-mediated trifluoromethyltelluration of arylboronic acids with [Me4N][TeCF3] using air as an environmental friendly oxidant is presented. The reaction proceeded smoothly under mild conditions in the presence of Cu(OTf)2 and bipyridine to
Jing-Yan Dong   +3 more
doaj  

The The perceptions of Senior High School students and teachers about organic chemistry: A Ghanaian perspective

open access: yesScience Education International, 2021
The purpose of the study was to determine the perceptions that senior high school (SHS) chemistry students and teachers have about organic chemistry as well as to compare organic chemistry topics that are difficult for students and teachers.
Esther Nartey , Ruby Hanson
doaj   +1 more source

The serendipitous effect of KF in Ritter reaction: Photo-induced amino-alkylation of alkenes

open access: yesiScience, 2021
Summary: Ritter reaction has been recognized as an elegant strategy to construct the C−N bond. Its key feature is forming the carbocation for nucleophilic attack by nitriles.
Yu-Qing Guan   +6 more
doaj  

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