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6192-52-5 - p-Toluenesulfonic acid monohydrate, 98% - PTSA - Tosic acid monohydrate - A14119 - Alfa Aesar

A14119 p-Toluenesulfonic acid monohydrate, 98%

Numéro CAS
6192-52-5
Synonymes
PTSA
Tosic acid monohydrate

Dimensions Prix ($) Quantité Disponibilité
100g 15,86
500g 42,02
5000g 184,37
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p-Toluenesulfonic acid monohydrate, 98%

MDL
MFCD00142137
EINECS
203-180-0

Propriétés chimiques

Formule
C7H8O3S•H2O
Poids formulaire
190.22 (172.20anhy)
Point de fusion
103-106°(anhy)
Point d'ébullition
140°/20mm
Point d'éclair
150°(302°F)
Densité
1.24
Sensibilité
Hygroscopic

Applications

p-Toluenesulfonic acid monohydrate is used as a catalyst in the synthesis of resveratrol, in oxane derivatives as an antimalarial agent, as substituted piperidine and unsymmetrical benzyl. It acts as a catalyst in the preparation of 1,3,5-trisubstituted pyrazoles derivatives, selenated ketene dithioacetals, triazoloquinazolinone and benzimidazoquinazolinone derivatives. It also serves as an intermediate in the esterification and in reductive amination reactions.

Notes

Hygroscopic. Incompatible with strong oxidizing agents and strong bases.

Références bibliographiques

For examples of the numerous applications as an organic-soluble acid catalyst, see:

Esterifications: Org. Synth. Coll., 3, 146, 203, 610 (1955); 9, 722 (1998). Enamine formation: Org. Synth. Coll., 5, 277, 808 (1973); 6, 520 (1988). Protection of alcohols as their THP ethers: Org. Synth. Coll., 7, 334 (1990). Formation acetals: Org. Synth. Coll., 6, 567 (1988); 8, 155 (1993); 9, 251, 717 (1998), and oxazolidines: Org. Synth. Coll., 9, 300 (1998).

Adsorbed on silica gel, has been used for the dehydration of sec- and tert-alcohols to alkenes in good yield: Synthesis, 1159 (1985).

See also Pyridinium p-toluenesulfonate, A15708.

Jauhar, R. M.; Kalainathan, S.; Murugakoothan, P. Three dimensional organic framework of 2-amino 4, 6 dimethoxypyrimidine p-toluenesulfonic acid monohydrate: synthesis, single crystal growth and its properties. J. Cryst. Growth 2015, 424, 3716-3722.

Davarpanah, M.; Ahmadpour, A.; Rohani-Bastami, T.; Dabir, H. Synthesis and application of diethanolamine-functionalized polystyrene as a new sorbent for the removal of p-toluenesulfonic acid from aqueous solution. J. Ind. Eng. Chem. 2015, 30, 3716-3722.

Mentions de danger et de prudence du SGH

Mentions de danger (UE): H314-H319-H335

Causes severe skin burns and eye damage. Causes serious eye irritation. May cause respiratory irritation.

Mentions de prudence: P260-P261-P280-P303+P361+P353-P305+P351+P338-P301+P330+P331-P304+P340-P310-P405-P501a

Do not breathe dust/fume/gas/mist/vapours/spray. Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Immediately call a POISON CENTER or doctor/physician. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Autres références

Merck
14,9533
Beilstein
3568023
Classe de danger
8
Groupe d'emballage
III
Code tarifaire harmonisé
2904.10
TSCA
Yes
RTECS
DB7164000

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