Results 191 to 200 of about 112,449 (386)

Enhanced Reactivity of N‐heterocyclic Halophosphines and Phosphenium Cations: The Activation of Carbon─Heteroatom and Boron─Heteroatom Bonds

open access: yesChemistry – A European Journal, EarlyView.
Novel class of saturated NHPs with phosphoramidothioate substituents exhibit enhanced reactivity in photoinitiated transfer hydrogenation reactions and activate C─O, B─H, B─C, and B─F bonds via phosphenium cation formation. Abstract N‐heterocyclic phosphines (NHPs), and especially their ionic derivatives, phosphenium cations, have gained significant ...
Maksim A. Samsonov   +6 more
wiley   +1 more source

Silyl Derivatives in the Synthesis of trans-beta-Trimethylsilyl-alpha,beta-unsaturated Ketones. [PDF]

open access: bronze, 1987
M. L. CHRISTIANSEN   +4 more
openalex   +1 more source

A Family of Symmetrical and Unsymmetrical Aza‐Dipyrromethenes and Aza‐BODIPYs with Through‐Bond and Face‐To‐Face π‐Interaction between Termini

open access: yesChemistry – A European Journal, EarlyView.
The reported aza‐dibenzodiprromethenes present a rare helical architecture, placing terminal aryl groups in a close, π‐stacked arrangement. Differentially terminated derivatives are prepared by statistical condensation or controlled synthesis via conversion of one partner to its tosylate or triflate.
Budur N. Alanazi   +11 more
wiley   +1 more source

Engineering Alloxazines by Boron Coordination and Click Chemistry toward Small‐molecule Fluorescent Probes

open access: yesChemistry – A European Journal, EarlyView.
The design of fluorescent molecules inspired by natural cofactors to monitor biological processes carries some intrinsic advantages. This is particularly relevant in the case of redox cofactors with innate fluorescence properties, such as flavins, and synthetic strategies toward their functionalized analogues are of high interest to modulate properties.
Oscar Charpentier   +5 more
wiley   +1 more source

(Trimethylsilyl)methyl Ketones in the Synthesis of Bromomethyl and Chloromethyl Ketones. [PDF]

open access: bronze, 1986
Tore Benneche   +4 more
openalex   +1 more source

Chemical Synthesis and Structural Determination of the Inositol Glycan Head of Plant Sphingolipid GIPC in Brassicaceae

open access: yesChemistry – A European Journal, EarlyView.
The first experimental identification of the IG head structure of naturally occurring plant GIPCs in Brassicaceae was achieved through the chemical synthesis of three hexose‐type IGs containing d‐glucose, d‐galactose, or d‐mannose as the second monosaccharide linked to d‐glucuronic acid‐α(1→2)‐myo‐inositol.
Yuta Umemura   +11 more
wiley   +1 more source

Antibacterial potential and chromatographic profiling of bioactive compounds from endophytic <i>Streptomyces</i> sp. strain MIRK71 isolated from <i>Mirabilis jalapa</i> (L.). [PDF]

open access: yesPeerJ
Lalrokimi   +10 more
europepmc   +1 more source

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