Chlorinated Compounds
Chlorinated Compounds - Related Videos
01:31
Radical Substitution: Allylic Chlorination
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2023
Typically, when alkenes react with halogens at low temperatures, an addition reaction occurs. However, upon increasing the temperature or under reaction conditions that form radicals, providing a low but steady concentration of halogen radicals, allylic substitution reaction is favored. This is because allylic hydrogens are very reactive as the formed intermediate is resonance stabilized. For example, when propene is treated with chlorine in the gas phase at 400 °C, it undergoes allylic...
14:17
The Portable Chemical Sterilizer (PCS), D-FENS, and D-FEND ALL: Novel Chlorine Dioxide Decontamination Technologies for the Military
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Cited by 8 •
2014
The Portable Chemical Sterilizer (PCS) is a revolutionary, energy-independent, almost waterless sterilization technology for Army medical units. The PCS generates chlorine dioxide from dry reagents mixed with water on-site, at-will, and at point-of-use (PoU) in a plastic suitcase. The Disinfectant-sprayer for Foods and ENvironmentally-friendly Sanitation (D-FENS) and the Disinfectant for ENvironmentally-friendly Decontamination, All-purpose (D-FEND ALL) produce aqueous chlorine dioxide in a...
07:07
Controlled-release of Chlorine Dioxide in a Perforated Packaging System to Extend the Storage Life and Improve the Safety of Grape Tomatoes
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Cited by 14 •
2017
Here, we describe a protocol for the application of a novel, slow-release ClO2 product that reduces spoilage and extends the shelf life of fresh fruit. The slow-release ClO2 product was added to standard commercial grape tomato packaging and tested against Escherichia coli and Alternaria alternata.
01:15
Electrophilic Aromatic Substitution: Chlorination and Bromination of Benzene
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2025
Chlorination and bromination are important classes of electrophilic aromatic substitutions, where benzene reacts with chlorine or bromine in the presence of a Lewis acid catalyst to give halogenated substitution products. A Lewis acid such as aluminium chloride or ferric chloride catalyzes the chlorination, and ferric bromide catalyzes the bromination reactions. During the bromination of alkenes, bromine polarizes and becomes electrophilic. However, in the bromination of benzene, the bromine...
09:38
Compound Administration II
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2016
Source: Kay Stewart, RVT, RLATG, CMAR; Valerie A. Schroeder, RVT, RLATG. University of Notre Dame, IN Compound administration is often an integral component of an animal study. Many factors need to be evaluated to ensure that the compound is delivered correctly. The route of administration affects the mechanisms of absorption. The characteristics of the substance to be introduced (the pH, viscosity, and concentration) may dictate which route of administration is selected.
FAQs
Chlorine changes molecular behavior through its electronegativity and size. These properties can alter a compound’s polarity, stability, and reactivity, which affects how it interacts with biological molecules. As a result, chlorinated compounds within the same broad class may differ substantially in their biological effects, environmental persistence, or susceptibility to chemical and biological transformation.
Oxidation, reduction, hydrolysis, and dehalogenation are important transformation pathways. They can modify the structure of a compound and change how it behaves in organisms or the environment. Examining these reactions helps researchers understand metabolism, evaluate whether compounds may be degraded, and interpret changes in properties such as persistence, toxicity, or potential bioaccumulation.
Molecular structure helps researchers connect chlorine-related changes in polarity, stability, and reactivity with interactions involving biological molecules. Metabolic studies add information about how organisms transform the compound. Together, structural and metabolic evidence supports evaluation of toxicity, persistence, biodegradation, and bioaccumulation rather than treating all chlorinated compounds as having identical biological or environmental behavior.
A biological investigation should relate the compound’s structure to its interactions with biological molecules and to transformations such as oxidation, reduction, hydrolysis, or dehalogenation. Researchers can then consider consequences including toxicity, persistence, biodegradation, and bioaccumulation. This approach connects chemical features with biological processing and provides a basis for interpreting environmental or physiological significance.
Environmental monitoring uses information about chlorinated compounds and their transformations to assess their presence and behavior in environmental settings. Bioremediation applies knowledge of biodegradation to address compounds that organisms can transform. In both contexts, studying metabolism helps clarify persistence and potential accumulation, supporting evaluation of environmental conditions and the effectiveness of biological treatment strategies.
Their relevance extends beyond pollutants because chlorinated compounds also include pharmaceuticals and natural metabolites. Studying how chlorine affects molecular properties and how organisms transform these molecules can inform drug development and the understanding of chlorine-based biochemistry. The same structure–metabolism framework therefore connects applied pharmaceutical research with naturally occurring biological chemistry.