853994-46-4

Basic information

• Product Name: 1-(3-sulfopropyl)pyridinium p-toluenesulfonate
• CAS NO: 853994-46-4
• Molecular Weight: 373.451
• Mol File: 853994-46-4.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: 1-(3-sulfopropyl)pyridinium p-toluenesulfonate(CAS DataBase Reference)
• NIST Chemistry Reference: 1-(3-sulfopropyl)pyridinium p-toluenesulfonate(853994-46-4)
• EPA Substance Registry System: 1-(3-sulfopropyl)pyridinium p-toluenesulfonate(853994-46-4)

Safety Data

• Hazardous Substances Data: 853994-46-4(Hazardous Substances Data)

Upstream product

• 110-86-1 pyridine 
• 1120-71-4 1,3-propanesultone 
• 104-15-4 toluene-4-sulfonic acid 
• 15471-17-7 1-(3-sulfopropyl)pyridine 

Relevant articles and documents

Effects of cations, anions and H+ concentration of acidic ionic liquids on the valorization of polysaccharides into furfural

The valorization of hemicellulose into valuable chemicals, such as C5 sugars and furfural, in a one-pot fashion is crucial. In this work, acidic ionic liquids in the presence of water showed high yields of C5 sugars (>80%) with >99% conversion of hemicelluloses at 160 °C. With a water + toluene biphasic solvent system, within 4 h, an 85% furfural yield was obtained directly from hemicellulose in a one-pot fashion using a catalytic amount of 1-methyl-3-(3-sulfopropyl)-imidazolium hydrogen sulfate. It was seen that Br?nsted acidic ionic liquids (BAILs) perform better than solid acid [Faujasite and Mordenite zeolites; ion exchange resin, Amberlyst-15] and mineral catalysts [HCl and H2SO4]. The higher activity of BAILs compared to solid acids and mineral acids was correlated to the Hammett acidity function (Ho) and ion-dipole type of interactions. The catalysts were characterized using NMR (1H and 13C), elemental analysis and TGA to confirm that they were stable under reaction conditions and were thus recyclable.

Condensation of 9-fluorenone and phenol using an ionic liquid and a mercapto compound synergistic catalyst

A series of ionic liquids (ILs) were synthesized and their Hammett acidities (H0) were determined using 4-nitroaniline as the indicator. The relationship among IL's structure, the acid strength, and the catalytic performance in the condensation reaction of 9-fluorenone with phenol was discussed. The effective H0 range of ionic liquids that can catalyse the condensation reaction was obtained. Moreover, the catalysis of the mercapto compound co-catalyst was also systematically studied. According to the analysis of how the structure of the sulfydryl co-catalyst affects the percent conversion of 9-fluorenone and the selectivity of BHPF, a mechanism for the reaction in the IL-thiol cooperative catalytic system was proposed. The present work gave a clear clue to design novel IL catalysts for the synthesis of BHPF.