191664-01-4

Basic information

• Product Name: 4-Chloro-benzenesulfonic acid cyclobutylmethyl ester
• Synonyms: 4-Chloro-benzenesulfonic acid cyclobutylmethyl ester
• CAS NO: 191664-01-4
• Molecular Weight: 260.741
• Mol File: 191664-01-4.mol

Chemical Properties

• CAS DataBase Reference: 4-Chloro-benzenesulfonic acid cyclobutylmethyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: 4-Chloro-benzenesulfonic acid cyclobutylmethyl ester(191664-01-4)
• EPA Substance Registry System: 4-Chloro-benzenesulfonic acid cyclobutylmethyl ester(191664-01-4)

Safety Data

• Hazardous Substances Data: 191664-01-4(Hazardous Substances Data)

Upstream product

• 4415-82-1 cyclobutanemethanol 
• 98-60-2 4-chlorobenzenesulfonyl chloride 

Downstream Products

• 98-66-8 4-chloro-benzenesulfonic acid 
• 29337-12-0 4-Chloro-benzenesulfonic acid; compound with phenylamine 
• 53039-76-2 4-Chloro-benzenesulfonic acid; compound with 4-chloro-phenylamine 
• 53039-73-9 4-Chloro-benzenesulfonic acid; compound with p-tolylamine 

Relevant articles and documents

Kinetics and mechanism of the aminolysis of cycloalkylmethyl arenesulfonates

Nucleophilic substitution reactions of cycloalkylmethyl arenesulfonates (CmH2n-1 CH2OSO2C6H4Z) with anilines (XC6H4NH2) in methanol at 65.0 °C were studied. The reactivity order (n=4>6>7>5) reflects largely the order of steric effect of the ring size (SEs term) except for n=5, which exhibits the least reactivity. This reversal of the order for n=5 is considered to result from large rate retardation due to polar effect of the ρ*σ* term. Application of the Taft equation to the rate data for n=5 and 6 gives ρ=17·4 and 5=2·3 with correlation coefficient of 0·90. The σ* values for n=4 and 7 are estimated to be - 0·23 and - 0·11, respectively. The positive ρxz values of ca 0·3 are consistent with previous results for the reactions at primary reaction centers.