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4124-41-8 - p-Toluenesulfonic anhydride, 97% - Tosic anhydride - L00160 - Alfa Aesar

L00160 p-Toluenesulfonic anhydride, 97%

CAS Number
4124-41-8
Synonyms
Tosic anhydride

Size Price ($) Quantity Availability
5g 40.50
25g 137.00
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p-Toluenesulfonic anhydride, 97%

MDL
MFCD00008548
EINECS
223-926-9

Chemical Properties

Formula
C14H14O5S2
Formula Weight
326.38
Melting point
125-130°
Sensitivity
Moisture Sensitive

Literature References

More powerful sulfonylating reagent than the sulfonyl chloride, also avoiding possible displacement of sulfonate by halide. This is particularly useful in the sulfonylation of hindered alcohols and sugars: J. Chem. Soc., 1225 (1953).

/n

Anions of ß-ketoesters react with p-toluenesulfonic anhydride to give enol tosylates in good yield; tosyl chloride gives poor results (ca 20%): Synth. Commun., 20, 881 (1990).

/n

Has been used in combination with Paraformaldehyde, A11313 in the generation of monomeric formaldehyde: Synlett, 704 (1990).

/n

GHS Hazard and Precautionary Statements

Hazard Statements: H314-H318

Causes severe skin burns and eye damage. Causes serious eye damage.

Precautionary Statements: P260u-P303+P361+P353-P305+P351+P338-P301+P330+P331-P405-P501a

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. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References

Beilstein
2223702
Hazard Class
8
Packing Group
III
Harmonized Tariff Code
2904.10
TSCA
No

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