CAS 814-75-5; 3-溴-2-丁酮; (+-)-alpha-bromoethylmethyl ketone

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CAS:

814-75-5

分子式:

C4H7BrO

分子量:

151.00

沸点:

36℃(11 t

中文名称:

3-溴-2-丁酮

英文名称:

(+-)-alpha-bromoethylmethyl ketone

1-bromoethyl methyl ketone

2-bromo-3-butanone

3-bromo-2-butanon

3-bromo-2-butanone

alpha-bromoethyl methyl ketone

2-Bromo-2-butanone

性质描述:

沸点36℃（1.46kPa）。

生产方法:

由丁酮-[2]溴化而得。将丁酮-[2]、氯酸钾和水加入反应锅中，加热到36℃，在搅拌下滴加溴，温度升至38℃，约3h加完。再继续保温搅拌1h。静置分层，取下层有机相用氯化镁和水洗涤，干燥，减压分馏，收集81-90℃（20kPa），馏分即得成品。

用途:

医药中间体。

推荐供应商

货号

品牌

产品名称

规格

包装、参考价格

详情

B835434

MACKLIN

3-溴-2-丁酮

97%,stab. with <1% magnesium oxide

156元/1g; 692元/5g; 2400元/25g;

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储存：室温,密封,干燥
状态：无色到黄色到棕色液体

A10186

Alfa Aesar

3-Bromo-2-butanone

97%, stab. with <1% magnesium oxide

1294元/10g; 4861元/50g; 15877元/250g;

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应用
3-Bromo-2-butanone is involved in the preparation of o-isopropyl S-3-oxobutan-2-yl dithiocarbonate by reaction with potassium o-isopropylxanthate, which on treatment with sulfuric acid gives 4,5-dimethyl-1,3-dithiol-2-one .

备注
Incompatible with strong oxidizing agents, strong bases and strong reducing agents.

基本信息

MDL
MFCD00013538

EINECS
212-404-6

分子式
C₄H₇BrO

分子量
151.01

沸点
69-70°/70mm

闪点
>100°(212°F)

密度
1.438

折射率
1.4590

灵敏度
Ambient temperatures.

形态
Liquid

溶解性
Miscible with dichloromethane.

Beilstein
906773

GHS危害和防范说明

GHS符号

Hazard Statements
H301-H312-H331-H314-H318
Toxic if swallowed.Harmful in contact with skin.Toxic if inhaled.Causes severe skin burns and eye damage.Causes serious eye damage.

Precautionary Statements
P280-P305+P351+P338-P309-P310
Wear protective gloves/protective clothing/eye protection/face protection.IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.IF exposed or if you feel unwell:Immediately call a POISON CENTER or doctor/physician.

安全信息

危险等级
8

包装组
II

危险类别
21-23/25-34
Harmful in contact with skin.Toxic by inhalation and if swallowed.Causes burns.

安全等级
26-36/37/39-45
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable protective clothing, gloves and eye/face protection.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).

RTECS
EL7005000

TSCA
是

C40291

Alfa Aesar

3-Bromo-2-butanone

95%, stabilized

1481元/1g; 3075元/5g;

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基本信息

Ref#
40291

MDL
13538

分子式
C4 H7 Br O

分子量
151

闪点
51

密度
1438

安全信息

危险等级
8

包装组
II

662747

Sigma-Aldrich

3-Bromo-2-butanone

97%

782.45元/1 G; 3264.88元/5 G;

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产品说明

应用

3-Bromo-2-butanone can be used as a reactant to synthesize:

N

-(4,5-Dimethyl-1H-imidazol-2-yl)acetamide by reacting with N-acetylguanidine under acidic conditions.
Oxazole derivatives by silver triflate catalyzed cyclization reaction with various amides.
2-bromo-5,6-dimethyl[1,3]oxazolo[3,2-b][1,2,4]triazole by treating with 3,5-dibromo-1,2,4-triazole in the presence DBU.

包装

1, 5 g in glass bottle

基本信息

经验(实验)分子式	C₄H₇BrO
分子量	151.00
EC 号	212-404-6
MDL编号	MFCD00013538
PubChem化学物质编号	24884602
NACRES	NA.22

产品性质

质量水平	100
测定	97%
折射率	n20/D 1.460
密度	1.416 g/mL at 25 ℃
SMILES string	CC(Br)C(C)=O
InChI	1S/C4H7BrO/c1-3(5)4(2)6/h3H,1-2H3
InChI key	BNBOUFHCTIFWHN-UHFFFAOYSA-N

安全信息

象形图
警示用语：	Danger
危险声明	H226 - H302 + H312 - H314
预防措施声明	P210 - P233 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
危险分类	Acute Tox. 4 Oral - Flam. Liq. 3 - Skin Corr. 1B
储存分类代码	3 - Flammable liquids
WGK	WGK 2
闪点(F)	123.8 °F
闪点(C)	51 ℃
个人防护装备	Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

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