Results 51 to 60 of about 32,899 (265)

Manganese-catalyzed cyclopropanation of allylic alcohols with sulfones. [PDF]

open access: yesNat Commun
Cyclopropanes are among the most important structural units in natural products, pharmaceuticals, and agrochemicals. Herein, we report a manganese-catalyzed cyclopropanation of allylic alcohols with sulfones as carbene alternative precursors via a ...
Yu K, Nie Q, Chen Q, Liu W.
europepmc   +2 more sources

Identification and characterization of an irreversible inhibitor of CDK2 [PDF]

open access: yes, 2015
Irreversible inhibitors that modify cysteine or lysine residues within a protein kinase ATP binding site offer, through their distinctive mode of action, an alternative to ATP-competitive agents.
Anscombe, Elizabeth   +16 more
core   +1 more source

Synthesis of Adenine Nucleosides with a Reactive (<i>β</i>-Iodovinyl)sulfone or (<i>β</i>-Keto)sulfone Group at the C2 Position and Their Polymerase-Catalyzed Incorporation into DNA. [PDF]

open access: yesMolecules
Iodosulfonylation of an ethynyl group at the C2 position of 2′-deoxyadenosine or adenosine with TsI provides (E)-2-(β-iodovinyl)sulfones. The latter undergo nucleophilic substitution with amines via an addition–elimination to give β-sulfonylvinylamines ...
Howlader AH   +4 more
europepmc   +2 more sources

Zinc Promoted Cross-Electrophile Sulfonylation to Access Alkyl-Alkyl Sulfones. [PDF]

open access: yesAdv Sci (Weinh)
The transition metal‐catalyzed multi‐component cross‐electrophile sulfonylation, which incorporates SO2 as a linker within organic frameworks, has proven to be a powerful, efficient, and cost‐effective means of synthesizing challenging alkyl–alkyl ...
Wang Z   +6 more
europepmc   +2 more sources

CuI catalyzed sulfonylation of organozinc reagents with sulfonyl halides [PDF]

open access: yes, 2014
In this study, a facile CuI catalyzed synthesis of sulfones involving a nucleophilic addition of functionalized organozinc reagents to organic sulfonyl chlorides is realized.
Du, Z   +8 more
core   +1 more source

Regioselective synthesis of chiral dimethyl-bis(ethylenedithio)tetrathiafulvalene sulfones

open access: yesBeilstein Journal of Organic Chemistry, 2015
Enantiopure (R,R) and (S,S)-dimethyl-bis(ethylenedithio)tetrathiafulvalene monosulfones have been synthesized by the aerial oxidation of the chiral dithiolates generated from the propionitrile-protected precursors.
Flavia Pop, Narcis Avarvari
doaj   +1 more source

Crystal structure of (2R*,3aR*)-2-phenylsulfonyl-2,3,3a,4,5,6-hexahydropyrrolo[1,2-b]isoxazole

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2017
The title compound, C12H15NO3S, was prepared by 1,3-dipolar cycloaddition of 3,4-dihydro-2H-pyrrole 1-oxide and phenyl vinyl sulfone. In the molecule, both fused five-membered rings display a twisted conformation.
Yaiza Hernández   +4 more
doaj   +1 more source

Conformational modulation of sequence recognition in synthetic macromolecules [PDF]

open access: yes, 2011
The different triplet sequences in high molecular weight aromatic copolyimides comprising pyromellitimide units ("I") flanked by either ether-ketone ("K") or ether-sulfone residues ("S") show different binding strengths for pyrene-based tweezer-molecules.
Cardin, Christine   +6 more
core   +1 more source

A SULFONATED NAPHTHYLARSINIC ACID [PDF]

open access: yesJournal of the American Chemical Society, 1922
n ...
Hill, A. Elizabeth, Balls, A. K.
openaire   +3 more sources

Two-Step Azidoalkenylation of Terminal Alkenes Using Iodomethyl Sulfones

open access: yesMolecules, 2019
The radical azidoalkylation of alkenes that was initially developed with α-iodoesters and α-iodoketones was extended to other activated iodomethyl derivatives.
Nicolas Millius   +2 more
doaj   +1 more source

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