Results 291 to 300 of about 166,984 (347)
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Visible-Light-Enabled Ruthenium-Catalyzed meta-C-H Alkylation at Room Temperature.
Angewandte Chemie, 2019Visible-light-induced ruthenium catalysis has enabled remote C-H alkylations with excellent levels of position control under exceedingly mild conditions at room temperature.
Parthasarathy Gandeepan +4 more
semanticscholar +1 more source
Journal of the American Chemical Society, 2018
By substituting an ER3- unit (E = Group 13 element) or E'R3+ (E' = Group 15 element) for CR3 one gets to methyl isosteres, compounds analogous to alkyls and isoelectronic or iso-valence-electronic to them. The substituent charge can be used to stabilize countercharged aromatic systems; some compounds of this type are known.
Priyakumari Chakkingal Parambil +1 more
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By substituting an ER3- unit (E = Group 13 element) or E'R3+ (E' = Group 15 element) for CR3 one gets to methyl isosteres, compounds analogous to alkyls and isoelectronic or iso-valence-electronic to them. The substituent charge can be used to stabilize countercharged aromatic systems; some compounds of this type are known.
Priyakumari Chakkingal Parambil +1 more
openaire +2 more sources
Journal of the American Chemical Society, 2019
The asymmetric allylic alkylation (AAA), which features employing active allylic substrates, has historical significance in organic synthesis.
Hua-Chen Lin +8 more
semanticscholar +1 more source
The asymmetric allylic alkylation (AAA), which features employing active allylic substrates, has historical significance in organic synthesis.
Hua-Chen Lin +8 more
semanticscholar +1 more source
Enantioconvergent Cu-catalysed N-alkylation of aliphatic amines
Nature, 2023Ji-Jun Chen +13 more
semanticscholar +1 more source
Solution properties of alkyl glucosides, alkyl thioglucosides and alkyl maltosides
Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2004Abstract Aqueous solutions containing sugar-based surfactants, alkyl glucosides, thioglucosides and maltosides, have been investigated in a wide concentration range, at different temperatures. Colligative properties (freezing point and vapour pressure depression), volumetric, adiabatic compressibility, surface tension and calorimetric methods were ...
Antonio Capalbi +2 more
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Chemoselective N-alkylation of Indoles in Aqueous Microdroplets.
Angewandte Chemie, 2019Many reactions show much faster kinetics in microdroplets than that in the bulk phase. Most reported reactions in microdroplets mirror the products found in bulk reactions.
E. Gnanamani, Xin Yan, R. Zare
semanticscholar +1 more source
Bulletin du cancer, 2011
With the approval of mechlorethamine by the FDA in 1949 for the treatment of hematologic malignancies, alkylating agents are the oldest class of anticancer agents. Even though their clinical use is far beyond the use of new targeted therapies, they still occupy a major place in specific indications and sometimes represent the unique option for the ...
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With the approval of mechlorethamine by the FDA in 1949 for the treatment of hematologic malignancies, alkylating agents are the oldest class of anticancer agents. Even though their clinical use is far beyond the use of new targeted therapies, they still occupy a major place in specific indications and sometimes represent the unique option for the ...
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Alkylated steroids from tosylhydrazones and alkyl-lithiums
Journal of the Chemical Society C: Organic, 1971The reaction between 5α-cholestan-3-one tosylhydrazone and alkyl-lithium reagents produces equatorial 3β-alkyl-5α-cholestanes.
J E, Herz, C V, Ortíz
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Chemoselective Synthesis of Lenalidomide-Based PROTAC Library Using Alkylation Reaction.
Organic Letters, 2019An organic base-promoted chemoselective alkylation of lenalidomide with different halides was developed, which offers a novel approach to a highly functionalized lenalidomide-based PROTAC library under mild reaction conditions.
Xing Qiu +5 more
semanticscholar +1 more source
Sequence-Dependent Stereodivergent Allylic Alkylation/Fluorination Reaction of Acyclic Ketones.
Angewandte Chemie, 2019The stereodivergent Ir-catalyzed allylic alkylation and fluorination of acyclic ketones is described. α -Pyridyl- α -fluoroketones with vicinal tertiary and quaternary stereocenters were obtained in moderate to excellent yields and stereoselectivities ...
Xi‐Jia Liu +5 more
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