Results 111 to 120 of about 294,987 (360)

A computational study of the structures and base-pairing properties of pyrrolizidine alkaloid-derived DNA adducts

open access: hybrid, 2023
Mckenzie Franz   +7 more
openalex   +1 more source

One‐Pot Transition‐Metal‐Free Methods for the Synthesis of All Three Bonds of the Alkyne's Triple Bond

open access: yesChemistry – A European Journal, EarlyView.
One‐pot transition‐metal‐free methods for the synthesis of all three bonds of the alkyne's triple bond are reviewed. After analysis of several named reactions and discussion of improvements, recent advances in the synthesis of alkynes are discussed. Each section contains a proposed reaction mechanism and analysis of the strengths and weaknesses of the ...
Eugene Kim   +4 more
wiley   +1 more source

Recent total synthesis of natural products leveraging a strategy of enamide cyclization

open access: yesBeilstein Journal of Organic Chemistry
Enamides are distinctive amphiphilic synthons that can be strategically incorporated into cyclization reactions. The iminium species generated from enamides via nucleophilic addition or substitution are capable of engaging in further electrophilic ...
Chun-Yu Mi   +2 more
doaj   +1 more source

Identification of Natural Isonitriles Through Ligation to an Azomethine Imine Probe

open access: yesChemistry – A European Journal, EarlyView.
The azomethine imine (AMI)–isonitrile (NC) ligation allowed for the chemoselective detection of natural isonitriles in bacteria and fungi. The reactivity‐based screening establishes a new stereogenic center, thereby allowing for facile distinction between chiral and achiral isonitriles. The work also unraveled a unique reactivity of isonitriles bearing
Maurice P. Biedermann   +6 more
wiley   +1 more source

Biopigment Tracing of Mangrove Rhizophora mucronate Leaf an Bark Waste and Its Application for Batik Dyeing by Multiple Fixations [PDF]

open access: yes, 2017
The purpose of this research is to determine the pigments in the bark and leaves of mangrove (Rhizophora mucronata), to analyze rate of color fastness in batik, level of consumer interest, and most effective pricing for the resulting batik products.
Azizah TN, Ria   +4 more
core  

Cytotoxic Alkaloids from Leaves and Twigs of Dasymaschalon sootepense [PDF]

open access: bronze, 2014
Sakchai Hongthong   +6 more
openalex   +1 more source

Synthesizing polyethersulphone membranes with hybrid iron/nickel nanoparticles for dyes removal: An efficient biogenesis approach

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Industrial wastewater contamination by azo dyes poses a significant environmental challenge. This study reports the green synthesis of bimetallic iron/nickel (Fe/Ni) nanoparticles using moringa leaf extract, which acted as both a reducing and capping agent, and their incorporation into polyethersulphone (PES) membranes to produce eco‐friendly ...
Qusay A. Almajras   +7 more
wiley   +1 more source

Isoform Specificity of a Compound Targeting Actin Filaments Containing Tropomyosin Tpm1.8/1.9

open access: yesCytoskeleton, EarlyView.
ABSTRACT The unbranched actin filaments in mammalian cells are usually composed of co‐polymers of a specific tropomyosin isoform with actin. Genetic manipulation has revealed that the tropomyosins largely define the functional properties of actin filaments in an isoform‐specific, non‐redundant manner.
Jeff Hook   +2 more
wiley   +1 more source

Integrated Transcriptomic and Metabolomic Analysis Identified Key Transcriptional Factors Involved in Flavonoid and Alkaloid Biosynthesis Among Different Tissues of Sophora flavescens

open access: yesAgronomy
Sophora flavescens has anti-inflammatory, analgesic, antibacterial, antiviral, and anti-tumor properties due to its active compounds, including alkaloids and flavonoids. Exploring the biosynthetic regulation mechanism of these compounds is crucial. Here,
Ake Liu   +8 more
doaj   +1 more source

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