28188-48-9

Basic information

• Product Name: Benzenesulfonic acid, 4-(1,1-dimethylethyl)-2,6-dimethyl-
• CAS NO: 28188-48-9
• Molecular Formula: C12H18O3S
• Molecular Weight: 242.339
• Mol File: 28188-48-9.mol
• Article Data: 4

Chemical Properties

• CAS DataBase Reference: Benzenesulfonic acid, 4-(1,1-dimethylethyl)-2,6-dimethyl-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzenesulfonic acid, 4-(1,1-dimethylethyl)-2,6-dimethyl-(28188-48-9)
• EPA Substance Registry System: Benzenesulfonic acid, 4-(1,1-dimethylethyl)-2,6-dimethyl-(28188-48-9)

Safety Data

• Hazardous Substances Data: 28188-48-9(Hazardous Substances Data)

Upstream product

• 108-88-3 toluene 
• 108-38-3 m-xylene 
• 70823-04-0 4-tert-butyl-2,6-dimethylbenzene-1-sulfonyl chloride 
• 2040-10-0 4-tert-butyl-2,6-dimethylacetophenone 
• 98-19-1 5-tert-Butyl-m-xylene 

Relevant articles and documents

Reactivity of sterically hindered aromatic sulfonic acid derivatives: VII.* hydrolysis of arenesulfonyl chlorides in aqueous acetonitrile

Hydrolysis of sterically hindered arenesulfonyl chlorides in aqueous acetonitrile is accelerated by both electron-acceptor and some electron-donor substituents in the benzene ring. A multifactor kinetic model of the process is proposed. 1998 MAHK Hayka/Interperiodica Publishing.

REACTIVITY OF STERICALLY HINDERED DERIVATIVES OF AROMATIC SULFONIC ACIDS. I. EFFECT OF SUBSTITUENTS ON RATE AND MECHANISM OF HYDROLYSIS OF SOME SUBSTITUTED BENZENESULFONYL CHLORIDES

The kinetics of the hydrolysis of substituted benzenesulfonyl chlorides XArSO2Cl in 70percent aqueous dioxane at 303, 313, and 323 K were studied by acid-base titration.The effect of the investigated set of substituents cannot be described by a single linear relationship of the Hammett type.The substrates containing methyl groups at the ortho positions of the aromatic ring exhibit enhanced reactivity.The effect of the structural changes in the sulfonyl chlorides on the nature of bond formation and cleavage in the transition state is discussed in terms of the SN2 mechanism.An attempt is made to explain the V-shaped form of the relationship between log k and ? from the standpoint of the hyperconjugation effect, the contribution from which amounts to about 10percent of the ρ value.