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重要文件

269190

Sigma-Aldrich

甲基磺酸酐

97%

同義詞:

甲基磺酰基甲磺酸酯, 甲基磺酸酐, 甲磺酰酐, 甲磺酸酐

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About This Item

線性公式:
(CH3SO2)2O
CAS號碼:
分子量::
174.20
Beilstein:
972316
EC號碼:
MDL號碼:
分類程式碼代碼:
12352100
PubChem物質ID:
NACRES:
NA.22
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蒸汽密度

3.3 (vs air)

品質等級

化驗

97%

形狀

solid

bp

125 °C/4 mmHg (lit.)

mp

64-67 °C (lit.)

官能基

sulfonic acid

SMILES 字串

CS(=O)(=O)OS(C)(=O)=O

InChI

1S/C2H6O5S2/c1-8(3,4)7-9(2,5)6/h1-2H3

InChI 密鑰

IZDROVVXIHRYMH-UHFFFAOYSA-N

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一般說明

甲磺酸酐是一种有机化合物,通常用作制备甲基磺酸盐(甲磺酸盐)的试剂。它还用于使用各种胺前体合成甲磺酰胺。此外,甲磺酸酐和二甲基亚砜的混合物可以用作将伯醇和仲醇氧化为醛和酮的氧化剂。

應用

Methanesulfonic anhydride can be used as an amine base to synthesize glycosyl mesylates in situ from the corresponding free hemiacetals under mild conditions.

象形圖

Corrosion

訊號詞

Danger

危險聲明

危險分類

Skin Corr. 1A

安全危害

儲存類別代碼

8A - Combustible corrosive hazardous materials

水污染物質分類(WGK)

WGK 3

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges


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Keith Smith et al.
Organic & biomolecular chemistry, 2(21), 3150-3154 (2004-10-27)
Regioselective methanesulfonylation of simple aromatics using methanesulfonic anhydride can be achieved over zeolite catalysts. For example, methanesulfonylation of toluene over various cation-exchanged zeolite beta catalysts affords higher para-selectivity in the synthesis of methyl tolyl sulfone than standard Friedel-Crafts methanesulfonylation utilising
Mark C Wilkinson
Organic letters, 13(9), 2232-2235 (2011-03-29)
The utility of methanesulfonic anhydride for promoting the Friedel-Crafts acylation reaction of aryl and alkyl carboxylic acids is disclosed. This reagent allows the preparation of aryl ketones in good yield with minimal waste containing no metallic or halogenated components, clearly
Mohammad Hasani et al.
The journal of physical chemistry. B, 123(8), 1815-1821 (2019-02-20)
Protic ionic liquids (PILs) are made by proton transfer from a Brønsted acid to a base and are of interest for their solvent and electrolyte properties such as high ionic conductivity. Unfortunately, many PILs have been misnamed, because their ionic

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    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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