Results 31 to 40 of about 214,608 (288)

New 2H-Azirin-3-amines as Synthons for Sulfur-Heterocyclic α-Amino Acids [PDF]

open access: yes, 2013
Three new spiroheterocyclic 2H-azirin-3-amines, which contain a sulfur atom, were prepared and successfully used for the synthesis of oligopeptides containing sulfur-heterocyclic α-amino acids via the ‘azirine/oxazolone method’
Stoykova, Svetlana A   +6 more
core   +1 more source

Synthesis of New Heterocyclic Compounds Derived from Anthrone and Evaluation of Their Biological Activity

open access: yesمجلة بغداد للعلوم, 2008
In this research, Schiff bases derived from the reaction of anthrone with different heterocyclic amines have been described. The resulted Schiff base compounds were reacted with various nucleophiles in order to obtain new heterocyclic derivatives ...
Baghdad Science Journal
doaj   +1 more source

A Holistic Platform Approach for Developing Robust Pulmonary mRNA Delivery: Integrating Novel Phenolic Acid‐Derived Ionizable Lipids and Device Engineering

open access: yesAdvanced Functional Materials, EarlyView.
An integrated pulmonary mRNA delivery platform combining novel biodegradable syringic acid‐derived ionizable lipids, design‐of‐experiments formulation optimization, and vibrating‐mesh nebulizer engineering enabled stable aerosolization and efficient lung delivery.
Neha Kaushal   +21 more
wiley   +1 more source

Enhancing Reaction Kinetics and Structural Control in N‐Carboxyanhydride (NCA) Polypeptide Synthesis by Structurally Tuned Azamacrocyclic Ligands

open access: yesAngewandte Chemie, EarlyView.
Azamacrocycles provide a tunable platform for rapid N‐carboxyanhydride (NCA) Ring‐Opening Polymerization (ROP). Changing the methylation pattern switches the macrocycle from an external catalyst (N14Me3) to a covalent initiator‐catalyst (IniCat, N14Me1), delivering controlled polypeptide growth under open‐vessel conditions.
Paulina Maksym   +10 more
wiley   +2 more sources

Fluorescent heterocyclic amines as core molecules for the preparation of fluorogenic aminopeptidase substrates.

open access: yes, 2016
Fluorescent heterocyclic amines as core molecules for the preparation of fluorogenic aminopeptidase substrates.
Stephen P. Stanforth (3156171)   +5 more
core   +1 more source

Phase Engineering of Atomically Precise Nanoclusters (APNCs) of Gold and Beyond

open access: yesAdvanced Materials, EarlyView.
Engineering the structural phase of materials is of paramount importance for both fundamental research and practical applications. In this Review, we summarize the recent progress in controlling the phases of atomically precise nanoclusters (APNCs) of gold, silver and copper, as well as bimetallic systems. The phase‐enabled material properties of APNCs
Yitong Wang   +4 more
wiley   +1 more source

Octahedral Complexes of Nickel(II) Bis Ethylacetoacetate with Aromatic Heterocyclic Amines

open access: yes, 1967
Octahedral Complexes of Nickel(II) Bis Ethylacetoacetate with Aromatic Heterocyclic ...
A. Syamal
core   +1 more source

Probing Electrocatalyst Design for Product Selectivity in CO2 Reduction

open access: yesAdvanced Science, EarlyView.
Selective CO2 electroreduction is controlled by catalyst structure, dynamic surface reconstruction, adsorbate interactions, and reaction microenvironment. This review summarizes Cu‐ and non‐Cu‐based catalysts, single‐atom and molecular systems, degradation pathways, and operando/computational strategies for steering CO2RR toward hydrocarbons ...
Suvodeep Sen   +5 more
wiley   +1 more source

Synthesis, characterization and applications of some novel mordent and heterocyclic disperse dyes on polyester and wool fibers

open access: yesOrbital: The Electronic Journal of Chemistry, 2012
The novel mordent and disperse heterocyclic dyes were prepared by coupling of various diazo solution of aromatic amines with 1-[(2-butyl-2,3-dihydrobenzofuran-3-yl)]-1-(4-hydroxyphenyl)methanone. The resultant mordent and disperse heterocyclic dyes
Hitendra Mangubhai Patel
doaj   +1 more source

Quantitative Analysis of Three Amines in Thermally Processed Meat Products Using QuEChERS Combined with UHPLC-MS/MS

open access: yesShipin gongye ke-ji, 2022
In this study, QuEChERS technology combined with ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) was used to establish a method for the simultaneous detection of acrylamide (AA), nitrosamines (NAs) and heterocyclic ...
Zhiwei QIN, Bo YE, Ling LIU
doaj   +1 more source

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