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88571-24-8

88571-24-8

Identification

Synonyms:2-Aminophenyl2-hydroxyethyl sulfone; 2-[(2-Aminophenyl)sulfonyl]ethanol

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Safety information and MSDS view more

  • Signal Word:no data available

  • Hazard Statement:no data available

  • First-aid measures: General adviceConsult a physician. Show this safety data sheet to the doctor in attendance.If inhaled If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician. In case of skin contact Wash off with soap and plenty of water. Consult a physician. In case of eye contact Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician. If swallowed Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.

  • Fire-fighting measures: Suitable extinguishing media Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide. Wear self-contained breathing apparatus for firefighting if necessary.

  • Accidental release measures: Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. For personal protection see section 8. Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the environment must be avoided. Pick up and arrange disposal. Sweep up and shovel. Keep in suitable, closed containers for disposal.

  • Handling and storage: Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Avoid exposure - obtain special instructions before use.Provide appropriate exhaust ventilation at places where dust is formed. For precautions see section 2.2. Store in cool place. Keep container tightly closed in a dry and well-ventilated place.

  • Exposure controls/personal protection:Occupational Exposure limit valuesBiological limit values Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday. Eye/face protection Safety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Skin protection Wear impervious clothing. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique(without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it. Respiratory protection Wear dust mask when handling large quantities. Thermal hazards

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Relevant articles and documentsAll total 2 Articles be found

Formation of Benzoxathiete under Mild Conditions and Its Valence Tautomerism in Solution to Monothio-o-benzoquinone: An Experimental and Quantum Chemical Study

Naghipur, Ali,Reszka, Krzysztof,Sapse, Anne-Marie,Lown, J. William

, p. 258 - 268 (2007/10/02)

Aprotic diazotization of 2-aniline in dimethoxyethane affords products that include biphenylene and dibenzo-1,4-oxathiane.Detection of these products is consistent with the formation of benzoxathiete and the valence tautomerism to monothio-o-benzoquinone with concomitant formation of dehydrobenzene by a competing pathway.The latter was independently trapped with 1,3-diphenylisobenzofuran and with 9,10-dimethylanthracene.The requirement for SO group participation in the formation of benzoxathiete is established by comparison with the behavior of the analogous thioether and sulfone compounds.EPR and spin-trapping experiments confirm the intermediacy of both oxygen- and nitrogen-centered free radicals which is consistent with the homolytic pathways proposed for the diazotization process.Parallel aqueous diazotization of 2-aniline affords vinyl acetate, phenol, and halobenzene consistent with the generation of dehydrobenzene but not benzoxathiete under these conditions.Spin-trapping/EPR studies gave no evidence for free-radical components in the protic diazotization reaction.Ab initio calculations using the 3-21G* and 6-31G* basis sets within the Hartree-Fock approximation, as well as the MP2/3-21G* method, predict an energetically feasible tautomerism of benzoxathiete to monothio-o-benzoquinone.The 3-21G* calculations reveal the presence of a biradical intermediate for this reaction which, as a singlet, features an energy higher than the benzoxathiete by 33 kcal/mol, while as the corresponding triplet it proves to be lower in energy than the benzoxathiete by 2.5 kcal/mol.This process, however, might be symmetry forbidden.By contrast, the symmetry-allowed cycloreversion pathway of benzoxathiete to dehydrobenzene and SO is energetically much less favorable.

Process route upstream and downstream products

Process route

2-<(2-Hydroxyethyl)thio>aniline
77474-06-7

2-<(2-Hydroxyethyl)thio>aniline

2-<(2-Hydroxyethyl)sulfinyl>aniline
98897-97-3

2-<(2-Hydroxyethyl)sulfinyl>aniline

2-<(2-Hydroxyethyl)sulfonyl>aniline
88571-24-8

2-<(2-Hydroxyethyl)sulfonyl>aniline

Conditions
Conditions Yield
With 3-chloro-benzenecarboperoxoic acid; In dichloromethane; at 0 ℃; for 2h;
27%
67.5%
2-amino-benzenethiol
137-07-5

2-amino-benzenethiol

2-<(2-Hydroxyethyl)sulfonyl>aniline
88571-24-8

2-<(2-Hydroxyethyl)sulfonyl>aniline

Conditions
Conditions Yield
Multi-step reaction with 2 steps
1: 84 percent / sodium bicarbonate / H2O; dioxane / 48 h
2: 27 percent / m-chloroperbenzoic acid / CH2Cl2 / 2 h / 0 °C
With sodium hydrogencarbonate; 3-chloro-benzenecarboperoxoic acid; In 1,4-dioxane; dichloromethane; water;
2-((2-nitrophenyl)thio)ethan-1-ol
13287-78-0

2-((2-nitrophenyl)thio)ethan-1-ol

2-<(2-Hydroxyethyl)sulfonyl>aniline
88571-24-8

2-<(2-Hydroxyethyl)sulfonyl>aniline

Conditions
Conditions Yield
96%
96%
2-<(2-Hydroxyethyl)sulfonyl>aniline
88571-24-8

2-<(2-Hydroxyethyl)sulfonyl>aniline

2-<(2-Bromoethyl)sulfonyl>aniline hydrobromide
117341-21-6

2-<(2-Bromoethyl)sulfonyl>aniline hydrobromide

Conditions
Conditions Yield
With sulfurous dibromide; In dichloromethane; 1.) -5 - 0 deg C, 3 h, 2.) room temp., 24 h, 3.) reflux, 1 h;
76%

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  • Bluecrystal chem-union
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  • Henan Wising Chem Co., Ltd
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