物质信息
ID:714496
名称和标识
IUPAC标准名
4-oxopentanoic acid
IUPAC传统名
levulinic acid
别名
4-Oxopentanoic acid乙酰丙酸Levulinic acid4-Ketopentanoic acid
化合物性质
安全信息
GHS危险声明
H314-H318-H302
欧盟危险性物质标志
腐蚀性 (C)
有害性 (X)GHS危险品标识
急性毒性（口服，皮肤接触，吸入），类别4
皮肤刺激，类别2
眼刺激，类别2
皮肤过敏，类别1
特定目标器官毒性 -一次接触，类别3
腐蚀金属，类别1
腐蚀皮肤，类别1A，1B，1C
严重眼损伤，类别1
GHS警示性声明
P280-P305+P351+P338-P309-P310
安全公开号
26-36/37/39-45
联合国危险货物等级
8
联合国危险货物编号
UN3261
保存注意事项
Light Sensitive
RTECS编号
OI1575000
联合国危险货物包装类别(PG)
III
TSCA收录
是
危险公开号
22-34
理化性质
折射率
1.4415
熔点
26-31°C
闪点
137°C(278°F)
沸点
245-246°C
密度
1.134
产品相关信息
纯度
98%
描述信息
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分子图谱
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参考文献
• Alcohols and phenols can be protected as levulinate (Lev) esters. Ester formation has been brought about, e.g. by reaction with an alcohol in the presence of DCC and DMAP: Tetrahedron Lett., 4875 (1976); 23, 2615 (1982). The same references describe facile, selective cleavage by the use of hydrazine hydrate in pyridine/acetic acid. For use of 2-Chloro-1-methylpyridinium iodide, A12820, in the formation of Lev esters, see: Tetrahedron Lett., 21, 381 (1980). Alternative cleavage methods include: borohydride in water: J. Am. Chem. Soc., 97, 1614 (1975); MeMgI: benzoate esters unaffected: J. Chem. Soc., Chem. Commun., 681 (1992); sodium sulfite/ bisulfite under neutral conditions, effective for Lev esters of nucleosides, carbohydrates and steroids: Chem. Lett., 585 (1988). Lev esters have also been prepared using 2-Ethoxy-1-ethoxycarbonyl-1,2-dihydroquinoline, A13724: Tetrahedon Lett., 23, 2615 (1982).