Description

3,3-Dimethylallyltrimethylsilane is a highly versatile organosilicon compound featuring a reactive allyl group protected by a trimethylsilyl moiety. This unique structure makes it a valuable synthetic intermediate and protecting group reagent in advanced organic synthesis. It is primarily utilized by R&D chemists and process development teams in the pharmaceutical, agrochemical, and specialty chemical industries for constructing complex molecular architectures.

Application

• Key Intermediate in Pharmaceutical Synthesis: Used in the preparation of active pharmaceutical ingredients (APIs), particularly in carbon-carbon bond formation reactions.
• Protecting Group Chemistry: The silyl group effectively protects hydroxyl or other functional groups during multi-step synthetic sequences.
• Agrochemical Precursor: Serves as a building block for synthesizing advanced crop protection agents and plant growth regulators.
• Material Science & Polymer Modification: Employed in the synthesis of silicone-based polymers and as a modifier to introduce functional groups into polymer chains.
• Cross-Coupling Reactions: Acts as a reagent in palladium-catalyzed cross-coupling reactions, such as the Hiyama coupling, for biaryl formation.
• Fragrance and Flavor Synthesis: Utilized in the production of specific terpene-based aroma chemicals.
• Organic Semiconductor Research: Investigated as a precursor or modifying agent in the development of novel organic electronic materials.

Basic Information

Product Name	3,3-Dimethylallyltrimethylsilane
CAS No.	18293-99-7
Molecular Formula	C8H18Si
Molecular Weight	142.31 g/mol
Synonyms	1,1-Dimethyl-2-(trimethylsilyl)ethylene; 3,3-Dimethylallyltrimethylsilane; 2-(Trimethylsilyl)-3-methyl-1-butene; 3-Methyl-2-(trimethylsilyl)but-1-ene; (3-Methylbut-2-enyl)trimethylsilane; Prenyltrimethylsilane; Trimethyl(3-methyl-2-butenyl)silane; TMS-prenyl
EINECS	Contact for details

Quality Control

Our 3,3-Dimethylallyltrimethylsilane is produced under strict quality management systems. Every batch undergoes rigorous analytical testing, including GC (Gas Chromatography) for purity and identity confirmation, to ensure it meets the high standards required for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and impurity profiles is provided with each shipment to guarantee batch-to-batch consistency and traceability.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and incompatible materials. Due to its highly volatile nature, ensure containers are kept tightly sealed when not in use to prevent evaporation and concentration changes. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Water Content (KF)	≤ 0.1%
Refractive Index (n20D)	1.425 - 1.430
Density (20°C)	0.74 - 0.78 g/mL

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