Related Experiment Video
Updated: May 14, 2026

Tuning the Acidity of Pt/ CNTs Catalysts for Hydrodeoxygenation of Diphenyl Ether
Published on: August 17, 2019
Benzosultines as sulfur dioxide (SO2) donors.
Satish R Malwal1, Mahesh Gudem, Anirban Hazra
1Department of Chemistry, Indian Institute of Science Education and Research Pune, Pune 411 008, Maharashtra, India.
Researchers developed 1-phenyl-benzosultine, a novel sulfur dioxide (SO(2)) donor. This compound efficiently releases SO(2) under physiological conditions, aiding in the study of SO(2)
Area of Science:
- Chemical biology
- Organic chemistry
- Biochemistry
Background:
- Understanding the biological roles of sulfur dioxide (SO(2)) requires reliable methods for its controlled release.
- Existing SO(2) donors may lack efficiency or stability under physiological conditions.
Purpose of the Study:
- To design and synthesize a novel, efficient sulfur dioxide (SO(2)) donor compound.
- To characterize the SO(2) release profile and evaluate the biological activity of the developed donor.
Main Methods:
- Synthesis of 1-phenyl-benzosultine.
- Characterization of SO(2) release kinetics (yield and half-life) in aqueous buffer at 37 °C.
- Assessment of SO(2)-like biological activity using a DNA cleavage assay.
Main Results:
- 1-phenyl-benzosultine was successfully designed and synthesized as an efficient SO(2) donor.
- The compound demonstrated a high yield (89%) of SO(2) generation via cycloreversion in aqueous buffer at 37 °C.
- A half-life of 39 minutes for SO(2) release was determined.
- The compound exhibited SO(2)-like biological activity in a DNA cleavage assay.
Conclusions:
- 1-phenyl-benzosultine is a valuable and efficient sulfur dioxide (SO(2)) donor for biological studies.
- This compound facilitates the investigation of SO(2)'s precise biological roles.
- The demonstrated SO(2)-like activity suggests potential applications in biological systems requiring controlled SO(2) delivery.
Related Concept Videos
Electrophilic Aromatic Substitution: Sulfonation of Benzene
Preparation and Reactions of Sulfides
Sulfur Assimilation
Microbes and the Sulfur Cycle
Preparation and Reactions of Thiols
Diazonium Group Substitution: –OH and –H

