Results 51 to 60 of about 19,002,772 (320)
Transition Metal-Catalyzed C-H Activation via Imine-Based Transient Directing Group Strategy
Youji huaxue, 2020 In the past decades, transition metal-catalyzed C-H activation has experienced tremendous growth and revolutionized the field of organic synthesis. Several elegant strategies have been developed to promote reactivity and control precise site-selectivity.
Yong-Jin Wu, Bingfeng Shi
semanticscholar +1 more source
, 2020 The palladium-catalysed sp3 C-H arylation of a selection of saturated amine scaffolds was investigated using substituted picolinamide directing groups.
Abil, Aliev +4 more
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Pd-catalysed ligand-enabled carboxylate-directed highly regioselective arylation of aliphatic acids
Nature Communications, 2017 Palladium catalysed C-H functionalization ofsp3carbons typically requires the installation and subsequent removal of a temporary directing group. Here the authors report a method allowing C-H functionalization in carboxylic acids in which the carboxylate
Yan Zhu +5 more
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Insights on tert-butyl alkylation effects on fluorobenzene
Scientific African, 2021 Directing effects of substituents on the benzene ring, ortho and para directors by electron donating groups and meta directors using electron withdrawing groups have been studied and reported widely. In particular and for many years, the directing effect
Lewis Mtashobya
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Grouping principles in direct competition
Vision Research, 2013 We (1) introduce a primed flanker task as an objective method to measure perceptual grouping, and (2) use it to directly compare the efficiency of different grouping cues in rapid visuomotor processing. In two experiments, centrally presented primes were succeeded by flanking targets with varying stimulus-onset asynchronies (SOAs).
Schmidt, Filipp, Schmidt, Thomas
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SOCIOPSYCHODRAMA: Protagonist-centered sociopsychodrama
Revista Brasileira de Psicodrama, 2020 Sociopsychodrama, as a group intervention method, enables directing strategies referenced to different approaches that prioritize protagonization, sociometry, or the spontaneous theater, among other probable theories.
Luís Falivene Alves
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MoleculesThe development of efficient synthetic procedures to access fused N, O-heterocyclic skeletons has been a pivotal research topic in organic synthesis for several years.
Ziad Moussa +3 more
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The Goldmark's Report directing to the organization of a subsidiary group of nursing (1919-1923)
Cultura de los Cuidados, 2012 Study about the directings to the organization of a subsidiary group of nursing on the Goldmark’s Report, 1919–1923. The temporal clipping comprehend the 1919 year, when was determined the committee that would conduct the study that resulted on Goldmark ...
Mary Ann Menezes Freire +3 more
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Nature Communications, 2023 Electrooxidation has emerged as an increasingly viable platform in molecular syntheses that can avoid stoichiometric chemical redox agents. Despite major progress in electrochemical C−H activations, these arene functionalizations generally require ...
Zhipeng Lin +11 more
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Selective synthesis of meta-phenols from bio-benzoic acids via regulating the adsorption state
iScience, 2023 Summary: Phenols are important building blocks widely applied in many fields. The pronounced orientational effect of the phenolic hydroxyl group makes achieving selective synthesis of meta-phenols challenging.
Xinze Du +4 more
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