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320102

乙酸酐

≥99%, liquid, ReagentPlus®

别名:

Acetanhydride, Acetic acid anhydride, Acetyl acetate, Acetyl anhydride, Ethanoic anhydride

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关于此项目

线性分子式:
(CH3CO)2O
化学文摘社编号:
108-24-7
分子量:
102.09
NACRES:
NA.21
PubChem Substance ID:
24859248
UNSPSC Code:
12352100
EC Number:
203-564-8
MDL number:
MFCD00008705
Beilstein/REAXYS Number:
385737
Assay:
≥99%
Form:
liquid
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产品名称

乙酸酐, ReagentPlus®, ≥99%

vapor density

3.5 (vs air)

Quality Level

200

vapor pressure

10 mmHg ( 36 °C), 4 mmHg ( 20 °C)

product line

ReagentPlus®

assay

≥99%

form

liquid

autoignition temp.

629 °F

expl. lim.

10.3 %

refractive index

n20/D 1.390 (lit.)

bp

138-140 °C (lit.)

mp

−73 °C (lit.)

solubility

water: slightly soluble

density

1.08 g/mL (lit.)

functional group

anhydride, ester

SMILES string

CC(=O)OC(C)=O

InChI

1S/C4H6O3/c1-3(5)7-4(2)6/h1-2H3

InChI key

WFDIJRYMOXRFFG-UHFFFAOYSA-N

General description

乙酸酐是一种酸酐，其通常被用作胺和醇的乙酰化试剂。
乙酸酐可参与环丙基酮的Friedel-Crafts′分子内环化反应，生成四氢萘酮。据报道，其可促进多种醛与活化亚甲基化合物的Knoevenagel缩合。

Application

乙酸酐可用作合成以下物质的反应物：
  • 3-乙酰氧基苯甲酸（通过与3-羟基苯甲酸反应生成）
  • 6-二甲基氨基-2,3-萘二甲酸酐（制备6-二甲基氨基萘酰亚胺的前体）

乙酸酐可用于以下研究：
  • Lipozyme TL IM（来自嗜热单胞菌的市售固定化脂肪酶）可催化丁香油的乙酰化。
  • 作为乙酰基供体，对脂肪酶催化的纳米原纤化纤维素（NFC）的乙酰化进行研究。
  • N-取代吡唑啉的合成。
  • 稗草（Echinochloa crus-galli）淀粉的乙酰化反应。

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

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Danger

Hazard Classifications

Acute Tox. 2 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B

存储类别

3 - Flammable liquids

flash_point_f

120.2 °F - closed cup

flash_point_c

49 °C - closed cup

ppe

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

法规信息

危险化学品
易制毒化学品（2类）

此项目有

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
STBK5431
STBK2228
STBK0644
SHBM1367
STBJ5344

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商品

傅-克酰基化反应

傅-克酰基化反应是一种芳烃与酰氯或酸酐使用强路易斯酸催化剂的反应。该反应通过亲电芳族取代进行，形成单酰化产物。

Friedel–Crafts Acylation

Friedel-Crafts acylation with Lewis acid catalysts forms monoacylated products via electrophilic aromatic substitution of arenes.

Mojca Božič et al.
Carbohydrate polymers, 125, 340-351 (2015-04-11)
The acetylation efficiency of nanofibrillated cellulose (NFC) with acetic anhydride as acetyl donor was studied using lipase from Aspergillus niger in a mixture of dimethyl sulphoxide (DMSO) and phosphate buffer solution at ambient conditions and in supercritical carbon dioxide (scCO2).
Yohei Ogiwara et al.
The Journal of organic chemistry, 80(6), 3101-3110 (2015-02-18)
The combination of a catalytic amount of InCl3 and acetic anhydride remarkably promotes the Knoevenagel condensation of a variety of aldehydes and activated methylene compounds. This catalytic system accommodates aromatic aldehydes containing a variety of electron-donating and -withdrawing groups, heteroaromatic
B Umesha et al.
Bioorganicheskaia khimiia, 40(4), 503-512 (2015-04-23)
The pyrazole analogues of podophyllotoxin were synthesized by the chalcone route. This route attracts the attention because of its simple operating conditions and easy availability ofthe chemicals. Initially, benzylide-neacetophenones (chalcones) were prepared in high yields by Claisen-Schmidt reaction of acetophenones
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全球贸易项目编号

货号GTIN
320102-100ML04061826695562
320102-1L04061837369322
320102-4L04065273544084
320102-4X100ML04061837369339
320102-500ML04061826695579