应用
Ethoxyacetylene is used in Arens-van Dorp synthesis to prepare propargyl alcohol via reaction with ketone. In organic synthesis, it undergoes [2+2] cycloaddition reactions with ketenes to give cyclobutenone derivatives. It is also used to prepare alpha, beta-unsaturated esters from ketones by following Meyer-Schuster rearrangement.Used with N-vinylamides and triflic anhydride in a direct, three-component synthesis of pyridines. Also used to prepare α, β-unsaturated esters from ketones via a Meyer-Schuster rearrangement.
备注
Incompatible with strong oxidizing agents and strong acids.
基本信息
MDL
MFCD00009247
EINECS
213-164-5
分子式
C4H6O
分子量
70.09
沸点
55-56°
闪点
-28°(-18°F)
密度
0.718
折射率
1.3800
灵敏度
Keep Cold.
形态
Liquid
溶解性
Slightly miscible with water.
Beilstein
741882
GHS危害和防范说明
GHS符号
Hazard Statements
H225-H303-H315-H361-H373-H304-H401-H411
Highly flammable liquid and vapour.May be harmful if swallowed.Causes skin irritation.Suspected of damaging fertility or the unborn child.May cause damage to organs through prolonged or repeated exposure.May be fatal if swallowed and enters airways.Toxic to aquatic life.Toxic to aquatic life with long lasting effects.
Precautionary Statements
P210-P273-P280h-P281-P301+P330+P331-P315
Keep away from heat/sparks/open flames/hot surfaces. - No smoking.Avoid release to the environment.Wear protective gloves/clothing.Use personal protective equipment as required.IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.Get immediate medical advice/attention.
安全信息
危险等级
3
包装组
II
危险类别
11-20/21-38-48/20-62-51/53-65
Highly flammable.harmful by inhalation and in contact with skin.Irritating to skin.Harmful: danger of serious damage to health by prolonged exposure through inhalation.Possible risk of impaired fertility.Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.Harmful: may cause lung damage if swallowed.
安全等级
9-16-23-33-36/37-57-60-62
Keep container in a well-ventilated place.Keep away from sources of ignition - No smoking.Do not breathe gas/fumes/vapour/spray (appropriate wording to be specified by the manufacturer).Take precautionary measures against static discharges.Wear suitable protective clothing and gloves.Use appropriate container to avoid environmental contamination.This material and its container must be disposed of as hazardous wasteIf swallowed, do not induce vomiting: seek medical advice immediately and show this container or label.
欧盟危险品标志
RTECS
KN9900000
TSCA
否
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