It has come to our notice that certain fraudulent individuals or entities are misusing our Company’s name and TCI’s registered trademarks by promoting and offering regulated and hazardous chemical substances through online platforms like YouTube. We hereby categorically clarify that TCI has no association or connection whatsoever with the products being displayed or sold in the videos. These products have been falsely represented as being associated with TCI, and the unauthorized use of our trademark and brand name is both illegal and misleading. TCI Chemicals markets and sells its products exclusively through its official website and authorized distributors. If you become aware of any such fraudulent activity or require clarification, you may reach out to us at: Sales-IN@TCIchemicals.com. Click Here to View the Caution Notice.
Product Document Searching Made Easy by 2D Code! | [Product Highlights] Endogenous Biotin-Blocking Reagent...Maximum quantity allowed is 999
Please select the quantity
A Brønsted Organic Acid Forming Solid State Salts with Chemically Stable Cationic Species
1,2-Benzenedisulfonic imide (1) is a strong Brønsted organic acid and is used for acid-catalyzed organic synthesis.1-3) For instance, 1 catalyzed acylations of alcohols with acid anhydrides can be performed under solvent-free conditions.3) After this reaction, the catalyst 1 can be recovered and reused. On the other hand, 1 can form ion-pairs with chemically stable cationic species. Barbero et al. successfully isolated cationic intermediates as solid state salts consisting of a conjugate base of 1, by the condensation reaction of aromatic aldehydes with benzimidazole derivatives under the presence of 1 to give the cationic intermediates.4) Isolated salt crystals are determined by X-ray analysis to clarify the structure of cationic intermediate.
References
- 1) o-Benzenedisulfonimide: An Organic Reagent and Organocatalyst of Renewed Interest
- 2) o-Benzenedisulfonimide as Reusable Brønsted Acid Catalyst for Acid-Catalyzed Organic Reactions
- 3) o-Benzenedisulfonimide as a Soft, Efficient, and Recyclable Catalyst for the Acylation of Alcohols, Phenols, and Thiols under Solvent-Free Conditions: Advantages and Limitations
- 4)Preparation and Characterization of Aryl or Heteroaryl(3-indolyl)methylium o-Benzenedisulfonimides