Results 31 to 40 of about 2,369 (185)

Direct Synthesis of Phosphonates and α-Amino-phosphonates from 1,3-Benzoxazines

open access: yesMolecules, 2019
A straightforward and novel method for transformation of readily available 1,3-benzoxazines to secondary phosphonates and α-aminophosphonates using boron trifluoride etherate as catalyst is developed.
Oscar Salgado-Escobar   +3 more
doaj   +1 more source

Shaping Carbon Nitrides for Advanced Macrostructures

open access: yesAdvanced Materials Technologies, Volume 11, Issue 13, 8 July 2026.
This review examines how carbon nitride can be shaped through a range of printing and interfacial assembly methods. By bringing together additive manufacturing and liquid–liquid structuring concepts, carbon nitride is moving beyond its traditional powder‐based photocatalyst form toward digitally designed robust macroscale architectures with high design
Simona Baluchová, Baris Kumru
wiley   +1 more source

Continuous-flow catalytic asymmetric hydrogenations: Reaction optimization using FTIR inline analysis

open access: yesBeilstein Journal of Organic Chemistry, 2012
The asymmetric organocatalytic hydrogenation of benzoxazines, quinolines, quinoxalines and 3H-indoles in continuous-flow microreactors has been developed.
Magnus Rueping   +2 more
doaj   +1 more source

Chiral (Stereoselective) Drugs, Asymmetric Synthesis, and Racemic Resolution Methods

open access: yesChirality, Volume 38, Issue 7, July 2026.
Chirality is crucial in drug development since both biological targets in the organism and the majority of pharmaceutical compounds are chiral. The synthesis and resolution of chiral compounds are critical steps while developing chiral drugs. Asymmetric synthesis and racemic resolution are the two most common methods for obtaining enantiopure drugs ...
Burcu Karayavuz   +1 more
wiley   +1 more source

Experimental and theoretical studies of benzoxazines corrosion inhibitors

open access: yesResults in Physics, 2017
2-Methyl-4H-benzo[d][1,3]oxazin-4-one (BZ1) and 3-amino-2-methylquinazolin-4(3H)-one (BZ2) were evaluated for their corrosion inhibition properties on mild steel (MS) in hydrochloric acid solution by weight loss technique and scanning electron microscopy.
Abdulhadi Kadhim   +8 more
doaj   +1 more source

Bioavailability and Bioactivity of Alkylresorcinols from Different Cereal Products

open access: yesJournal of Food Quality, 2020
Cereal products are the most important dietary source for energy intake and several bioactive compounds with high concentrations in the bran and the germ. Different cereal products provide a rich source of bioactive phytochemicals, namely, phenolic acids,
Shuangqi Tian   +3 more
doaj   +1 more source

Synthesis of 2-substituted benzimidazole, coumarin, benzo[b][1,4]oxazin and dihydropyrimidinone derivatives using core-shell structured Fe3O4@SiO2-ZnCl2 nanoparticles as an effective catalyst

open access: yesResults in Chemistry, 2020
In this paper, a magnetic nanocatalyst of Fe3O4@SiO2-ZnCl2 has been used which enhances the synthesis of benzimidazoles, coumarins, benzoxazines and dihydropyrimidinones. To begin with, 2-substituted benzimidazoles have been synthesized in proper to high
Saba Rahimi, Ebrahim Soleimani
doaj   +1 more source

Multi‐Induction Strategies in Crops: Mechanisms, Synergistic Effects, and Sustainable Applications for Enhanced Secondary Metabolite Production

open access: yesFood Frontiers, Volume 7, Issue 4, July 2026.
This review analyzes single/combined abiotic (light, water, nutrients, hormones) and biotic (microbes, yeast) elicitors regulating signaling, gene expression, and metabolism to boost plant secondary metabolites. It highlights synergistic multielicitor strategies for crop quality and functional foods, while critically addressing current limitations and ...
Yifei Sun   +6 more
wiley   +1 more source

Prediction of selected physical and mechanical properties of a telechelic polybenzoxazine by molecular simulation. [PDF]

open access: yesPLoS ONE, 2013
Molecular simulation is becoming an important tool for both understanding polymeric structures and predicting their physical and mechanical properties.
Wan Aminah Wan Hassan   +2 more
doaj   +1 more source

Insightful characterization of sesamol-based polybenzoxazines: Effect of phenol and amine chain type on physical and nanomechanical properties

open access: yesPolymer Testing, 2022
We report the synthesis of sesamol-based polyethyleneimine (PEI) polybenzoxazines. Their physico-chemical features have been compared with other aliphatic diamine chains and the influence on thermo-mechanical properties of the phenol substituent was ...
Mădălina I Necolau   +4 more
doaj   +1 more source

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