Description

1,3-Dioxane, 2-Ethynyl-4,4-Dimethyl- (9Ci) is a specialized heterocyclic building block featuring a reactive ethynyl group within a protected acetal framework. This compound matters for its role as a versatile synthon in advanced organic synthesis, enabling the construction of complex molecular architectures. It is primarily needed by research and development chemists in the pharmaceutical and agrochemical industries for creating novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key building block for the synthesis of novel drug candidates, particularly in medicinal chemistry programs targeting complex heterocycles.
• Agrochemical Synthesis: Used in the research and development of new pesticides and herbicides, where its unique structure can contribute to novel modes of action.
• Material Science Research: Serves as a monomer or precursor in the development of advanced polymers and functional materials with tailored properties.
• Academic & Industrial R&D: A valuable reagent for methodological development in organic synthesis, including click chemistry and cross-coupling reactions.
• Fine Chemical Production: Employed in the multi-step synthesis of complex fragrance and flavor ingredients.

Basic Information

Item	Detail
Product Name	1,3-Dioxane, 2-Ethynyl-4,4-Dimethyl- (9Ci)
CAS No.	189358-52-9
Molecular Formula	C8H12O2
Molecular Weight	140.18 g/mol
Synonyms	2-Ethynyl-4,4-dimethyl-1,3-dioxane; 4,4-Dimethyl-2-ethynyl-1,3-dioxane; 2-Ethynyl-4,4-dimethyl-m-dioxane; 1,3-Dioxane, 2-ethynyl-4,4-dimethyl-; Propargylaldehyde dimethyl acetal (derivative); Acetylene-functionalized dioxane
EINECS	Contact for details

Quality Control

Our 1,3-Dioxane, 2-Ethynyl-4,4-Dimethyl- (9Ci) is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including chromatography and spectroscopy, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all critical parameters are available upon request to support your quality assurance protocols.

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 heat, sparks, and open flames. Due to the reactive ethynyl moiety, it is recommended to store under an inert atmosphere for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/HPLC)	≥ 95.0% (Typical 97-99%)
Water Content (KF)	≤ 0.5%

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