Methanesulfonic anhydride

Methanesulfonic anhydride Basic information

Product Name:	Methanesulfonic anhydride
Synonyms:	fonic acid, 1,1'-anhydride;METHANESULPHONIC ANHYDRIDE;METHANESULFONIC ANHYDRIDE;METHYLSULFONIC ANHYDRIDE;Mesyl anhydride;Methanesulfonic acid, anhydride;methanesulfonicacid,anhydride;Mesic anhydride
CAS:	7143-01-3
MF:	C2H6O5S2
MW:	174.19
EINECS:	230-442-1
Product Categories:	Organic Building Blocks;Sulfonic/Sulfinic Acid Anhydrides;Sulfur Compounds;bc0001
Mol File:	7143-01-3.mol

Methanesulfonic anhydride Chemical Properties

Melting point	64-67 °C (lit.)
Boiling point	125 °C/4 mmHg (lit.)
density	1,36 g/cm³
vapor density	3.3 (vs air)
refractive index	1.5300 (estimate)
Fp	125°C/4mm
storage temp.	Store at <= 20°C.
solubility	Soluble in organic solvents.
form	Powder, Crystals and/or Chunks
color	White to light brown to gray
Sensitive	Moisture Sensitive
BRN	972316
InChIKey	IZDROVVXIHRYMH-UHFFFAOYSA-N
CAS DataBase Reference	7143-01-3(CAS DataBase Reference)
NIST Chemistry Reference	Methanesulfonic anhydride(7143-01-3)
EPA Substance Registry System	Methanesulfonic acid, anhydride (7143-01-3)

Safety Information

Hazard Codes	C
Risk Statements	14-35
Safety Statements	26-36/37/39-45
RIDADR	UN 3261 8/PG 2
WGK Germany	3
F	3-10
TSCA	Yes
HazardClass	8
PackingGroup	III
HS Code	29041000

MSDS Information

Provider	Language
Methanesulfonic anhydride	English
SigmaAldrich	English
ALFA	English

Methanesulfonic anhydride Usage And Synthesis

Chemical Properties	white to light brown to grey powder, crystals and/
Uses	Methanesulfonic anhydride is used to prepare methylsulfonyl esters called as mesylates. It finds application in the reaction of aromatic alkylation. It reacts with dimethylsulfoxide to get sulfoxonium complex, which is a useful oxidizing agent.
Preparation	Methanesulfonic anhydride may be prepared by the dehydration of methanesulfonic acid with phosphorus pentoxide. P2O5 + 6 CH3SO3H → 3 (CH3SO2)2O + 2 H3PO4 Methanesulfonic anhydride can be purified by distillation under vacuum (distillation of a solid) or by recrystallized from Methyl tert-butyl ether/toluene.

Methanesulfonic anhydride Preparation Products And Raw materials

Raw materials	Methanesulfonic acid-->asbestos
Preparation Products	3-HYDROXYMETHYL-PIPERAZINE-1-CARBOXYLIC ACID TERT-BUTYL ESTER-->4-Bromo-7-azaindole-->Dofetilide-->Cresol Red-->N-Phenylmethanesulfonamide-->Methyl 2-(MethylsulfonaMido)nicotinate-->Methanesulfonamide, N-(4-methoxyphenyl)-

Silver mesylate Methanesulfonic anhydride Erythromycin Estolate P-Toluenesulfonic anhydride Acetic anhydride Maleic anhydride Copper methane sulfonate Methanesulfonic acid Di-tert-butyl dicarbonate Succinic anhydride BENZENESULFONIC ANHYDRIDE Trifluoromethanesulfonic anhydride NONAFLUOROBUTANESULFONIC ANHYDRIDE 97 Trifluoromethanesulfonic acid Phthalic anhydride Glutaric anhydride ZINC TRIFLUOROMETHANESULFONATE Stannous methanesulfonate

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