Description

Cyclopentane, 1-(1-Butynyl)-2-Ethenyl-, (1R,2R)- (9Ci) is a chiral, substituted cyclopentane derivative characterized by its specific stereochemistry and functional groups. This compound matters as a high-value, stereochemically defined building block for advanced organic synthesis, enabling the creation of complex molecular architectures with precise spatial orientation. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical and agrochemical industries for applications such as asymmetric synthesis, medicinal chemistry, and the development of novel active ingredients.

Application

• Pharmaceutical Intermediate: Serves as a key chiral synthon in the research and development of novel active pharmaceutical ingredients (APIs), particularly for targets requiring specific stereochemistry.
• Agrochemical Synthesis: Used in the creation of advanced, stereoselective pesticides and herbicides where the biological activity is highly dependent on molecular configuration.
• Asymmetric Catalysis Ligand Precursor: Acts as a starting material for the synthesis of novel chiral ligands and organocatalysts used in enantioselective transformations.
• Material Science Research: Employed in the development of specialty polymers and advanced organic materials with tailored properties derived from its unique cyclic and alkyne/alkene functionality.
• Fine Chemical Production: Utilized in multi-step synthetic routes for high-value specialty chemicals, flavors, and fragrances requiring complex carbon skeletons.

Basic Information

Product Name	Cyclopentane, 1-(1-Butynyl)-2-Ethenyl-, (1R,2R)- (9Ci)
CAS No.	223127-46-6
Molecular Formula	C13H18
Molecular Weight	174.28 g/mol
Synonyms	(1R,2R)-1-(1-Butyn-1-yl)-2-ethenylcyclopentane; (1R,2R)-1-(But-1-yn-1-yl)-2-vinylcyclopentane; 1-(1-Butynyl)-2-ethenylcyclopentane, (1R,2R)-; (1R,2R)-1-(1-Butynyl)-2-vinylcyclopentane; (1R,2R)-1-But-1-yn-1-yl-2-vinylcyclopentane; Cyclopentane, 1-(1-butynyl)-2-ethenyl-, (1R,2R)-; (1R,2R)-1-(But-1-ynyl)-2-vinylcyclopentane
EINECS	Contact for details

Quality Control

Our Cyclopentane, 1-(1-Butynyl)-2-Ethenyl-, (1R,2R)- (9Ci) is produced and handled under strict quality management protocols. Each batch undergoes rigorous analytical testing, including chiral purity analysis (HPLC/GC), to ensure high enantiomeric excess (ee) and chemical purity meet exacting R&D standards. Comprehensive Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided to support your regulatory and development needs.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at controlled room temperature (15-25°C) in a cool, dry, and well-ventilated area. This material is easily oxidized and should be kept away from strong acids and oxidizing agents. For long-term storage, consider refrigeration at 2-8°C.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 95.0%
Chiral Purity (HPLC)	≥ 98.0% ee (1R,2R)
Water Content (KF)	≤ 0.5%

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