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P-Toluenesulfonic anhydride

P-Toluenesulfonic anhydride Structure
CAS No.
4124-41-8
Chemical Name:
P-Toluenesulfonic anhydride
Synonyms
4-Methylbenzenesulfonic anhydride;p-Tolylsulfonyl 4-methylbenzenesulfonate;Tosic anhydride;Toluene-p-anhydride;3-Toluenesulfonicanhydride;4-TOLUENESULFONIC ANHYDRIDE;P-TOLUENESULFONIC ANHYDRIDE;p-Toluenesulfonyl anhydride;TOLUENE-4-SULFONIC ANHYDRIDE;P-TOLUENESULPHONIC ANHYDRIDE
CBNumber:
CB1292293
Molecular Formula:
C14H14O5S2
Molecular Weight:
326.38
MOL File:
4124-41-8.mol
MSDS File:
SDS
Modify Date:
2024/5/18 8:51:57

P-Toluenesulfonic anhydride Properties

Melting point 121-127 °C(lit.)
Boiling point 478.0±48.0 °C(Predicted)
Density 1.361±0.06 g/cm3(Predicted)
storage temp. Inert atmosphere,2-8°C
form Powder, Crystals and/or Chunks
color Off-white to gray
Sensitive Moisture Sensitive
BRN 2223702
InChIKey PDVFSPNIEOYOQL-UHFFFAOYSA-N
CAS DataBase Reference 4124-41-8(CAS DataBase Reference)

SAFETY

Risk and Safety Statements

Symbol(GHS) 
GHS05
Signal word  Danger
Hazard statements  H314
Precautionary statements  P260-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338-P363
Hazard Codes  C
Risk Statements  34
Safety Statements  26-36/37/39-45
RIDADR  UN 2585 8/PG 3
WGK Germany  3
10-21
Hazard Note  Irritant
HazardClass  8
PackingGroup  II
HS Code  29041000
NFPA 704
1
3 0

P-Toluenesulfonic anhydride price More Price(6)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich(India) 259764 p-Toluenesulfonic anhydride 97% 4124-41-8 5G ₹3070.05 2022-06-14 Buy
Sigma-Aldrich(India) 259764 p-Toluenesulfonic anhydride 97% 4124-41-8 25G ₹11478.4 2022-06-14 Buy
TCI Chemicals (India) T1485 p-Toluenesulfonic Anhydride 4124-41-8 5G ₹2700 2022-05-26 Buy
ALFA India ALF-L00160-14 p-Toluenesulfonic anhydride, 97% 4124-41-8 25g ₹13440 2022-05-26 Buy
ALFA India ALF-L00160-06 p-Toluenesulfonic anhydride, 97% 4124-41-8 5g ₹2700 2022-05-26 Buy
Product number Packaging Price Buy
259764 5G ₹3070.05 Buy
259764 25G ₹11478.4 Buy
T1485 5G ₹2700 Buy
ALF-L00160-14 25g ₹13440 Buy
ALF-L00160-06 5g ₹2700 Buy

P-Toluenesulfonic anhydride Chemical Properties,Uses,Production

Chemical Properties

Off-white to cream powder

Uses

p-Toluenesulfonic anhydride has been employed as reagent in palladium-catalyzed allylic alkenylation of allylic alcohols with n-butyl acrylate.

General Description

p-Toluenesulfonic anhydride acts as electrophilic species and activates 2-deoxy-sugar hemiacetals in situ, which reacts stereoselectively with nucleophilic acceptors to afford β-anomers.

Synthesis

Add p-toluenesulfonic acid and an m-phosphorous compound used as raw materials into a reaction kettle, dropwise adding thionyl chloride while stirring. Controlling the temperature in the reaction kettle at 68-76 ℃ and heating to perform condensation after dropwise addition; inputting water and hydrochloric acid into the reaction kettle, cooling to 0 ℃. The reaction solution generated in the previous step was drawn into the water, vacuum filtration was performed, and centrifuging was used to obtain a crude product, p-toluenesulfonic anhydride. Furthermore, it was inputting ethyl acetate, performing heating reflux, and freezing to perform crystallization, thus obtaining the qualified finished product.

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