Product Introduction:

4,4'-Oxybis(benzenesulphonyl chloride) (OBSC) is a white crystalline powder. It has a minimum purity of 98% and a melting point not lower than 127℃. The maximum content of free moisture is 0.3%, and the maximum content of free acid is 0.2%. OBSC is an important organic compound with wide applications in the chemical and industrial fields. It is commonly used in the synthesis of pharmaceuticals, dyes, coatings, and high-molecular-weight materials. OBSC exhibits excellent chemical stability and reactivity, making it a valuable raw material for synthesizing intermediates and functional materials.

Chemical Properties

Molecular Formula: C12H8Cl2O2S2

Molecular Weight: 307.22 g/mol

Appearance: White to pale yellow solid

Solubility: Slightly soluble in water, soluble in organic solvents such as acetone, dichloromethane, and chloroform

The sulphonyl chloride groups make OBSC an effective electrophilic reagent in reactions involving nucleophilic substitution, especially in the synthesis of sulfonamide compounds and polycondensation reactions.

Applications of 4,4'-Oxybis(benzenesulphonyl chloride) (OBSC)

Polymer Chemistry

OBSC plays a key role in the synthesis of polyfunctional sulfonated polymers. By introducing sulfonyl groups into polymer chains, OBSC enhances the chemical resistance and thermal stability of the resulting polymers.

This is particularly useful in the development of high-performance materials used in:

Ion-exchange resins: OBSC-modified polymers exhibit improved ion-exchange properties, making them suitable for use in water treatment and industrial processes.

Conductive Polymers: OBSC is used to synthesize conductive polymers, which are crucial for applications in electronic devices, sensors, and energy storage.

Organic Synthesis

OBSC is a valuable reagent in organic synthesis, primarily for the creation of sulfonamide derivatives. These compounds are widely used in medicinal chemistry, where sulfonamides serve as key intermediates in drug development. The electrophilic nature of OBSC allows it to react efficiently with amines, producing sulfonamide compounds that have various biological activities, including antibacterial, antifungal, and anticancer properties.

Cross-Linking Agent

OBSC is used as a cross-linking agent in the production of thermosetting resins and composites. By linking polymer chains, OBSC improves the mechanical properties and durability of materials, making them suitable for applications in coatings, adhesives, and construction materials.

Industrial Applications

In the chemical industry, OBSC is utilized as an intermediate for the synthesis of various sulfonylated compounds, including surfactants, dyes, and stabilizers. The versatile reactivity of OBSC allows it to be tailored for specific industrial needs, particularly in the formulation of specialty chemicals.

Safety and Handling of 4,4'-Oxybis(benzenesulphonyl chloride) (OBSC)

Due to the presence of sulphonyl chloride groups, OBSC must be handled with care. These compounds are corrosive and can react violently with water or moisture, producing hydrochloric acid (HCl) and sulfur dioxide (SO2), both of which are hazardous. 

Proper safety precautions include:

Protective Equipment: Wear gloves, goggles, and protective clothing when handling OBSC to prevent skin and eye contact.

Storage Conditions: OBSC should be stored in airtight containers in a dry, cool place to minimize the risk of hydrolysis.

Disposal: Waste containing OBSC should be disposed of in accordance with local environmental regulations, as it can pose a risk to aquatic life and ecosystems.

Future Directions and Research on 4,4'-Oxybis(benzenesulphonyl chloride) (OBSC)

The research into 4,4'-Oxybis(benzenesulphonyl chloride) (OBSC) continues to grow, particularly in the areas of:

Green Chemistry: Efforts are underway to develop more environmentally friendly synthesis methods for OBSC, focusing on reducing the generation of toxic byproducts and improving reaction efficiencies.

New Materials: OBSC's potential in creating advanced materials, such as high-temperature polymers, conductive materials, and ion-exchange resins, is still being explored. Researchers are investigating ways to use OBSC in the production of next-generation materials with superior performance characteristics.

Biomedical Applications: OBSC is also being investigated for its role in drug delivery systems, where its sulfonyl groups can facilitate interactions with biomolecules and improve the stability and efficacy of therapeutic agents.