Results 61 to 70 of about 448 (148)

The Application of Perfluoroheteroaromatic Reagents in the Preparation of Modified Peptide Systems [PDF]

open access: yes, 2017
The perfluoroheteroaromatic reagent pentafluoropyridine has proved to be a highly reactive electrophile, undergoing SNAr arylation reactions in the presence of a range of nucleophilic peptide side chains (i.e. cysteine, tyrosine, serine and lysine) under
Dose, A   +23 more
core   +1 more source

Synthesis of a novel tetrafluoropyridine-containing amino acid and tripeptide

open access: yes, 2013
The synthesis of a novel fluoropyridine-containing amino acid from pentafluoropyridine by a nucleophilic substitution process is reported. The orthogonal protecting groups can be manipulated and the fluoropyridine amino acid incorporated into a ...
Sandford, Graham   +4 more
core   +1 more source

Photochemical reactions of fluorinated pyridines at half-sandwich rhodium complexes: Competing pathways of reaction

open access: yes, 2014
Irradiation of CpRh(PMe3)(C2H4) (1; Cp = η5-C5H5) in the presence of pentafluoropyridine in hexane solution at low temperature yields an isolable η2-C,C-coordinated pentafluoropyridine complex, CpRh(PMe3)(η2-C,C-C5NF4) (2).
Nuria Rendón (1305210)   +9 more
core   +1 more source

Polyfunctional tetrahydropyrido[2,3-b]pyrazine scaffolds from 4-phenylsulfonyl tetrafluoropyridine

open access: yes, 2005
Polyfunctional tetrahydropyrido[2,3-b]pyrazine scaffolds can be synthesized by sequential reaction of pentafluoropyridine with sodium phenylsulfinate and an appropriate diamine.
Yufit, D.S.   +5 more
core   +1 more source

On pyridine chloronium cations. [PDF]

open access: yesChem Sci, 2023
Pröhm P   +4 more
europepmc   +1 more source

Polyfunctional heteroaromatic fused ring systems [PDF]

open access: yes, 2005
Many current therapeutic agents are based on a core structure consisting of a fused ring heteroaromatic polycyclic system. Methodology for the synthesis of a range of these structurally diverse heteroaromatic derivatives is therefore highly desirable and
Slater, Rachel
core  

Selective Activation of the ortho C−F Bond in Pentafluoropyridine by Zerovalent Nickel: Reaction via a Metallophosphorane Intermediate Stabilized by Neighboring Group Assistance from the Pyridyl Nitrogen

open access: yes, 2016
Density functional theory is used to explore the origins of the chemoselectivity and regioselectivity of activation of C−F bonds in pentafluoropyridine with [Ni(PR3)2] species.
Stuart A. Macgregor (1350846)   +4 more
core   +1 more source

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