Description

3-Butenylmagnesium Bromide is a versatile organometallic Grignard reagent, widely used as a key building block in organic synthesis. Its primary value lies in its ability to introduce the reactive 3-butenyl group into target molecules, enabling the construction of complex carbon chains and functionalized intermediates. This compound is essential for research chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials industries, where it facilitates critical carbon-carbon bond-forming reactions.

Application

• Pharmaceutical Intermediates: Synthesis of active pharmaceutical ingredients (APIs) and complex drug candidates requiring specific alkene functionalities.
• Agrochemical Synthesis: Production of herbicides, fungicides, and plant growth regulators that incorporate butenyl-derived side chains.
• Fine Chemical Manufacturing: Key reagent for creating specialty chemicals, flavors, and fragrances through nucleophilic addition reactions.
• Polymer & Material Science: Used in the synthesis of monomers and precursors for specialty polymers and functional materials.
• Cross-Coupling Reactions: Acts as a coupling partner in transition metal-catalyzed reactions like Kumada coupling to form new C-C bonds.
• Academic & Industrial R&D: Fundamental reagent for methodological development and exploratory synthesis in organic chemistry laboratories.

Basic Information

Product Name	3-Butenylmagnesium Bromide
CAS No.	7103-09-5
Molecular Formula	C4H7BrMg
Molecular Weight	159.31 g/mol
Synonyms	3-Buten-1-ylmagnesium Bromide; (3-Butenyl)magnesium Bromide; But-3-en-1-ylmagnesium Bromide; Allylethylmagnesium Bromide; 1-Buten-4-ylmagnesium Bromide; Grignard Reagent 3-ButenylMgBr; 3-Butenyl Magnesium Bromide Solution
EINECS	Contact for details

Quality Control

Our 3-Butenylmagnesium Bromide is manufactured under stringent quality control protocols to ensure batch-to-batch consistency and high reactivity. Production adheres to cGMP guidelines where applicable, and each lot is accompanied by a comprehensive Certificate of Analysis (COA). The COA includes critical parameters such as concentration (typically supplied as a solution in THF or diethyl ether), assay by titration, and impurity profile. We are committed to meeting the exacting standards required for pharmaceutical and fine chemical synthesis.

Storage

Preserve in a tightly closed container, protected from light. Due to its highly volatile and moisture-sensitive nature, this reagent must be stored under an inert atmosphere (argon or nitrogen) in a cool, dry, and well-ventilated area. Recommended storage temperature is 2-8°C for extended stability. Keep away from heat, sparks, open flames, and incompatible materials such as water, acids, and oxidizing agents.

Specification

Item	Specification
Appearance	Clear, colorless to light yellow solution
Concentration	0.5 M to 2.0 M in specified solvent (e.g., THF, Diethyl ether)
Assay (Titration)	≥ 95%
Identification (IR)	Conforms to structure
Solvent Content (GC)	Balance

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