13659-19-3

Basic information

• Product Name: Benzenesulfonic acid, o-chloro-phenyl ester
• Synonyms: Benzenesulfonic acid, o-chloro-phenyl ester
• CAS NO: 13659-19-3
• Molecular Formula: C₁₂H₉ClO₃S
• Molecular Weight: 268.72
• Mol File: 13659-19-3.mol
• Article Data: 1

Chemical Properties

• Melting Point: 41-43 °C
• Boiling Point: 407.7°Cat760mmHg
• Flash Point: 200.4°C
• Appearance: /
• Density: 1.377g/cm³
• Vapor Pressure: 1.74E-06mmHg at 25°C
• Refractive Index: 1.601
• CAS DataBase Reference: Benzenesulfonic acid, o-chloro-phenyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: Benzenesulfonic acid, o-chloro-phenyl ester(13659-19-3)
• EPA Substance Registry System: Benzenesulfonic acid, o-chloro-phenyl ester(13659-19-3)

Safety Data

• Hazardous Substances Data: 13659-19-3(Hazardous Substances Data)

Usage

InChI:InChI=1/C12H9ClO3S/c13-11-8-4-5-9-12(11)17(14,15)16-10-6-2-1-3-7-10/h1-9H

Upstream product

• 95-57-8 2-monochlorophenol 
• 126644-70-0 1-<(tert-butyldimethylsilyl)oxy>-2-chlorobenzene 
• 133745-75-2 N-fluorobis(benzenesulfon)imide 
• 98-09-9 benzenesulfonyl chloride 
• 1193-00-6 sodium 4-chlorophenolate 

Downstream Products

• 105836-66-6 2-benzenesulfonyl-6-chloro-phenol 

Relevant articles and documents

NFSI/KF mediated mild and chemoselective interconversion of aryl TBDMS ethers to their benzene sulfonate

A one pot protocol for the transformation of aryl TBDMS ethers to corresponding benzene sulfonate esters using NFSI (N-flurobenzenesulfonimide)/KF is described. In situ generation of benzenesulfonyl fluoride directs chemoselective cleavage of aryl silyl ethers over alkyl silyl ethers. Electron withdrawing substituent's on aryl ring provided better yield than donating groups. Protecting groups and sensitive functionalities are well tolerated in this methodology. Thus, commercially available inexpensive reagents, mild reaction conditions and step economy are the advantages of this method.