80071-58-5

Basic information

• Product Name: Benzenesulfonic acid, 2-[(1-methylethyl)amino]-
• CAS NO: 80071-58-5
• Molecular Formula: C9H13NO3S
• Molecular Weight: 215.273
• Mol File: 80071-58-5.mol
• Article Data: 10

Chemical Properties

• CAS DataBase Reference: Benzenesulfonic acid, 2-[(1-methylethyl)amino]-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzenesulfonic acid, 2-[(1-methylethyl)amino]-(80071-58-5)
• EPA Substance Registry System: Benzenesulfonic acid, 2-[(1-methylethyl)amino]-(80071-58-5)

Safety Data

• Hazardous Substances Data: 80071-58-5(Hazardous Substances Data)

Upstream product

• 92610-92-9 N-isopropylanilinium sulfate 
• 92610-92-9 N-isopropyl-N-phenylammonium hydrogen sulfate 
• 80071-59-6 N-isopropyl-p-aminobenzenesulfonic acid 
• 768-52-5 N-Isopropylaniline 

Downstream Products

• 768-52-5 N-Isopropylaniline 

Relevant articles and documents

KINETICS OF SULFONATION OF AMINES OF THE BENZENE SERIES IN APROTIC SOLVENTS

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REARRANGEMENT OF PHENYL- AND N-ALKYLPHENYLAMMONIUM HYDROGEN SULFATES IN ORGANIC SOLVENTS

The kinetics of the rearrangement of phenyl- and N-alkylphenylammonium hydrogen sulfates in halogen-containing organic solvents were investigated in closed systems and with the removal of the water produced in the reaction.The isomeric composition of the obtained aminobenzenesulfonic acids was also studied.The rearrangement is described by a second-order kinetic equation.The reaction mechanism involves thermal dissociation of the phenyl- and N-alkylphenylammonium hydrogen sulfates at high temperatures to amines (bases) and sulfuric acid, followed by direct sulfonation of the amines (bases) by the sulfuric acid with the formation mostly of para-aminosulfonic acids of the benzene series.

KINETIC OF THE SULFONATION OF AMINES OF THE BENZENE SERIES WITH SULFURIC ACID

The kinetics of the sulfonation of primary, secondary, and tertiary amines of the benzene series with 80-99.7percent sulfuric acid were investigated.It was shown that the unprotonated and protonated forms of the amines, which are present in equilibrium, undergo sulfonation.The effective reaction rate constants and the activation energies for the sulfonation of the unprotonated and protonated molecules of the amines were calculated.The reaction mechanism and the structure of the transition state are discussed.