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  • 甲基丙二酸二乙酯

    Diethyl Methylmalonate

化合物简介

Diethyl methylmalonate is readily used as a moderately bulky nucleophile in organic synthesis. Diethyl methylmalonate is also used as a reagent to synthesize 7-alkylaminopyrazolo[1,5-a]pyrimidines, compounds that have antifungal properties.

基本信息

CAS:609-08-5
中文别名:甲基丙乙酸二乙酯;
英文别名:Propanedioic acid, methyl-, diethyl ester;diethyl 2-methylpropanedioate;
分子式:C8H14O4
分子量:174.194
精确质量:174.089
Psa:52.6
Logp:0.7487

编号系统

MDL号:MFCD00009162
EINECS号:210-175-7

物化性质

外观与性状:透明液体
密度:1.022g/mLat 20°C(lit.)
沸点:198-199°C(lit.)
闪点:170°F
折射率:n20/D 1.413(lit.)
水溶解性:immiscible
稳定性:Stable under normal temperatures and pressures.
储存条件:Keep away from heat, sparks, and flame. Keep away from sources of ignition. Keep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

安全信息

安全说明:S23-S24/25
WGK Germany:3
海关编码:2917190090

生产方法及用途

生产方法
生产方法:将草酰丙酸二乙酯加热至激烈逸出一氧化碳,温度130-150℃。放出的气体减少后,逐步上升高温度,使液体回流直至气体逸尽。蒸馏得甲基丙二酸二乙酯,收率97%。 有机合成中间体。
用途
有机合成中间体。

合成路线

上游原料

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图谱

Predict 1H proton NMR


13C NMR : Predict


1H NMR : Predict


13C NMR : in CDCl3


1H NMR : 90 MHz in CDCl3


Mass spectrum (electron ionization)


Mass


Raman : 4880 A,200 M,liquid


IR : liquid film


IR : CCl4 solution


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