Results 21 to 30 of about 321 (141)

Synthesis of imidazo[1,2-a]pyridine-containing peptidomimetics by tandem of Groebke–Blackburn–Bienaymé and Ugi reactions

open access: yesBeilstein Journal of Organic Chemistry, 2023
Peptidomimetics with a substituted imidazo[1,2-a]pyridine fragment were synthesized by a tandem of Groebke–Blackburn–Bienaymé and Ugi reactions. The target products contain substituted imidazo[1,2-a]pyridine and peptidomimetic moieties as pharmacophores ...
Oleksandr V. Kolomiiets   +5 more
doaj   +1 more source

A Conserved Isoleucine Gates the Diffusion of CO and O2 to the Active Site of NiFe CO‐Dehydrogenase

open access: yesAngewandte Chemie, EarlyView.
A combination of protein film electrochemistry and site‐directed mutagenesis shows that isoleucine 563 (numbering of Thermococcus sp. AM4) gates the arrival of both CO and O2 to the active site of the nickel‐iron CO dehydrogenases. Mutations at this position increase the resistance to O2 at the cost of a slower reaction with CO.
Laura Opdam   +7 more
wiley   +2 more sources

(tert-Butyl isocyanide-κC)trichloridogallium(III)

open access: yesIUCrData, 2016
The crystal structure of (tert-butyl isocyanide-κC)trichloridogallium(III), [GaCl3(C5H9N)], features the first reported isocyanide–gallium trihalide complex. The Ga—C—N—C fragment is essentially linear.
Jeremy L. Bourque   +2 more
doaj   +1 more source

The Chemistry of Phenylimidotechnetium(V) Complexes with Isocyanides: Steric and Electronic Factors

open access: yesMolecules, 2022
Organometallic approaches are of ongoing interest for the development of novel functional 99mTc radiopharmaceuticals, while the basic organotechnetium chemistry seems frequently to be little explored. Thus, structural and reactivity studies with the long-
Guilhem Claude   +5 more
doaj   +1 more source

Tris(tert-butyl isocyanide-κC)carbonylnickel(0)

open access: yesActa Crystallographica Section E, 2008
The title compound, [Ni(C5H9N)3(CO)], was prepared from Ni(CO)4 and a tenfold excess of tert-butyl isocyanide. It crystallizes with two symmetry-independent molecules per asymmetric unit.
Wolfgang Imhof   +2 more
doaj   +1 more source

Isocyanide-Based Multicomponent Reactions for the Synthesis of Heterocycles

open access: yesMolecules, 2015
Multicomponent reactions (MCRs) are extremely popular owing to their facile execution, high atom-efficiency and the high diversity of products. MCRs can be used to access various heterocycles and highly functionalized scaffolds, and thus have been ...
András Váradi   +3 more
doaj   +1 more source

Synthesis and structure of a tetrahedral homoleptic CuI complex with xylyl isocyanide

open access: yesActa Crystallographica Section E: Crystallographic Communications
Treatment of the CuI precursor [Cu(NCMe)4]PF6 with excess (10 equivalents) of relatively bulky xylyl isocyanide formed a tetra(isocyanide) complex, namely, tetrakis(2,6-dimethylphenylisocyanide)copper(I) hexafluorophosphate, [Cu(C9H9N)4]PF6 or [Cu(CNXyl ...
A. M. Buddhika Chandima   +2 more
doaj   +1 more source

[3+2] Cycloaddition of Tosylmethyl Isocyanide with Styrylisoxazoles: Facile Access to Polysubstituted 3-(Isoxazol-5-yl)pyrroles

open access: yesMolecules, 2017
A facile access to polysubstituted 3-(isoxazol-5-yl)pyrroles was developed through [3+2] cycloaddition of tosylmethyl isocyanide (TosMIC) and styrylisoxazoles.
Xueming Zhang, Xianxiu Xu, Dawei Zhang
doaj   +1 more source

Silver-Catalyzed Decarboxylative Acylation of Isocyanides Accesses to α-Ketoamides with Air as a Sole Oxidant

open access: yesMolecules, 2023
α-Ketoamide moieties, as privileged units, may represent a valuable option to develop compounds with favorable biological activities, such as low toxicity, promising PK and drug-like properties.
Jia Xu   +6 more
doaj   +1 more source

From Isocyanides to Iminonitriles via Silver-mediated Sequential Insertion of C(sp3)–H Bond

open access: yesiScience, 2019
Summary: Heterocycles are prevalent constituents of many marketing drugs and biologically active molecules to meet modern medical challenges. Isocyanide insertion into C(sp3)–H bonds is challenging especially for the construction of quaternary carbon ...
Huiwen Chi   +7 more
doaj   +1 more source

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