Description

Diethyl (3-Methylbut-2-Enyl)Malonate is a versatile malonate ester derivative, serving as a critical building block in advanced organic synthesis. Its value lies in its reactive methylene group and the prenyl-like side chain, enabling efficient carbon-carbon bond formation and the construction of complex molecular frameworks. This intermediate is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and fragrance industries, where it is used to synthesize active ingredients and specialty chemicals.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of various active pharmaceutical ingredients (APIs), particularly those with terpenoid or isoprenoid structures.
• Agrochemical Synthesis: Used in the production of pesticides, herbicides, and plant growth regulators, leveraging its ability to introduce branched-chain functionalities.
• Fragrance and Flavor Chemistry: Serves as a starting material for the creation of terpene-based aroma compounds and musk analogs.
• Organic Synthesis Building Block: Employed in alkylation, condensation, and cyclization reactions (e.g., Michael additions, Knoevenagel condensations) to construct complex organic molecules.
• Material Science Research: Investigated as a monomer or cross-linking agent in the development of specialized polymers and resins.
• Vitamin and Natural Product Synthesis: Intermediate in the synthetic pathways of vitamins (e.g., Vitamin E, K) and other natural products.

Basic Information

Item	Details
Product Name	Diethyl (3-Methylbut-2-Enyl)Malonate
CAS No.	22539-80-6
Molecular Formula	C₁₂H₂₀O₄
Molecular Weight	228.29 g/mol
Synonyms	Diethyl 3-Methyl-2-butenylmalonate; Diethyl (3-Methylbut-2-en-1-yl)propanedioate; 3-Methyl-2-butenylmalonic Acid Diethyl Ester; Prenylmalonic Acid Diethyl Ester; Diethyl Prenylmalonate; 22539-80-6; Propanedioic acid, (3-methyl-2-buten-1-yl)-, diethyl ester
EINECS	Contact for details

Quality Control

Our Diethyl (3-Methylbut-2-Enyl)Malonate is produced under stringent quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the exacting standards required for fine chemical synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong bases and incompatible materials such as strong oxidizing agents. The container should be kept tightly sealed to prevent moisture absorption.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Refractive Index (n20D)	1.440 - 1.445
Density (g/mL, 20°C)	0.990 - 1.010

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.