609-54-1

Usage

Uses

Reagent for serum cholesterol determination.

InChI:InChI=1/C8H10O3S.2H2O/c1-6-3-4-7(2)8(5-6)12(9,10)11;;/h3-5H,1-2H3,(H,9,10,11);2*1H2

Upstream product

• 106-42-3 para-xylene 
• 45867-06-9 2,5-dimethyl-benzenesulfinic acid 

Downstream Products

• 107100-45-8 2,5-dimethyl-benzenesulfonic acid-(4-bromo-phenacyl ester) 
• 95-72-7 2-chloro-1,4-dimethyl-benzene 
• 553-94-6 4-bromo-m-xylene 
• 1074-24-4 2,5-dibromo-p-xylene 
• 1124-05-6 1,4-dichloro-2,5-dimethylbenzene 
• 80509-27-9 3,6-dimethyl-2-nitro-benzenesulfonic acid 
• 19040-62-1 2,5-dimethylbenzenesulfonyl chloride 
• 62454-72-2 4-methyl-3-sulfobenzoic acid 
• 50619-01-7 3-amino-2,5-dimethyl-benzenesulfonic acid 
• 92147-52-9 2-(2,5-dimethyl-benzenesulfonyl)-isothiazolidine 1,1-dioxide 
• 80524-37-4 2,5-Dimethyl-benzenesulfonic acid 2-oxo-pentyl ester 
• 106-42-3 para-xylene 
• 19544-68-4 2,5-dimethyl-4-nitro-benzenesulfonic acid 
• 80509-28-0 2,5-dimethyl-3-nitro-benzenesulfonic acid 

Relevant academic research and scientific papers

Method for synthesizing 2-5 -dimethylphenol

The invention discloses a method for synthesizing 2,5-dimethyl phenol. The method comprises the steps: utilizing 2,5-dimehtyl-benzenesulfonic acid as a raw material, supercritical distilled water as areaction medium, sodium hydroxide as a catalyst and oxygen as an oxidant; reacting to obtain a 2,5-dimethyl phenol crude product; finally, sequentially filtering, ethanol refining and filtering and drying to obtain a 2,5-dimethyl phenol pure product. The method disclosed by the invention utilizes the supercritical water to synthesize the 2,5-dimethyl phenol, so that the method is the most appropriate method in the present; reaction steps are reduced, and a technological process is shortened; thus, the environmental pollution problem is fundamentally solved, and no three wastes (waste water, waste gas and waste solid) are generated. Therefore, according to the method disclosed by the invention, the technology utilizing the supercritical water to synthesize the 2,5-dimethyl phenol has a very obvious effect.

Cornforth and Corey-Suggs reagents as efficient catalysts for sulfonation of aromatic and heteroaromatic compounds using NaHSO3 under solvent free and microwave conditions

Cornforth and Corey-Suggs reagents Pyridinium Dichromate (PDC) and Pyridinium Chlorochromate (PCC) were explored as efficient catalysts for sulfonation of aromatic and heteroaromatic compounds using NaHSO3 in aqueous acetonitrile medium at room temperature within 1–4 h, while microwave assisted reactions took place within 1–4 min under solvent-free conditions. These observations indicate significant rate accelerations in microwave assisted reactions. which were explained due to the bulk activation of molecules induced by insitu generated high temperatures and pressures when microwaves are transmitted through reaction medium.

Regioselective Sulfonation of Aromatic Compounds over 1,3-Disulfonic Acid Imidazolium Chloride under Aqueous Media

1,3-Disulfonic acid imidazolium chloride ([Dsim]Cl), as a Bronsted acidic ionic liquid, is introduced for the sulfonation of aromatic compounds by in situ generation of sulfuric acid at 50 °C under mild conditions and in aqueous medium.

A novel method for sulfonation of aromatic rings with silica sulfuric acid

Direct and chemoselective sulfonation of aromatic compounds with silica sulfuric acid in 1,2-dichloeoethane or under solvent-free conditions.

Clean-chemistry sulfonation of aromatics

A solution of TFAA/H2SO4 is an atom-efficient liquid-phase system for rapid sulfonation of aromatic structures; H2SO4 is consumed stoichiometrically and the spent trifluoroacetic anhydride (TFAA) is readily recovered as trifluoroacetic acid (TFA) which can be recycled to TFAA.

Mass Spectral Studies of Alkylbenzenesulphonic Acids Through Their S-Benzylisothiouronium Salts

The mass spectra of alkylbenzenesulphonic acids in the form of their S-benzylisothiouronium salts have been studied.These S-benzylisothiouronium salts dissociated into two parent reactant ions: (i) alkylbenzenesulphonic acid and (ii) S-benzylisothiourea.The characteristic fragmentation patterns of alkylbenzenesulphonic acids (0-5 substituted alkyls) were studied and compared with those of the parent ion peak hydrocarbons.The intensity of the molecular decreased with the increase in the molecular weight of the sulphonic acids.Desulphonation as well as loss of the alkyl group was observed in all the spectra.Migration of the alkyl group from S to 0, followed by degradation, was also observed in all the spectra studied.