Description

3-Cyclopentene-1-Carboxylic Acid, 1-(Dimethoxyphosphinyl)-, 1,1-Dimethylethyl Ester is a specialized organophosphorus building block of significant interest in advanced synthetic chemistry. This compound matters for its role as a key intermediate in the synthesis of complex molecules, particularly in pharmaceutical and agrochemical research and development. It is primarily needed by R&D chemists and process development scientists working on novel active ingredients, where its unique functionalized cyclopentene and phosphonate ester groups enable critical bond-forming reactions.

Application

• Pharmaceutical Intermediate: A critical building block for the synthesis of novel drug candidates, particularly in medicinal chemistry programs targeting complex cyclic structures.
• Agrochemical Synthesis: Used in the research and development of new pesticides and herbicides, where the phosphonate moiety is a valuable functional group.
• Chemical Research & Development: Serves as a versatile synthon in academic and industrial labs for constructing complex, functionalized molecules via reactions like Horner-Wadsworth-Emmons olefination.
• Material Science Precursor: Potential use in the development of specialty polymers or ligands for catalysis, leveraging its reactive olefin and ester functionalities.
• Process Chemistry: Employed in scale-up and optimization studies for the production of high-value fine chemicals.

Basic Information

Product Name	3-Cyclopentene-1-Carboxylic Acid, 1-(Dimethoxyphosphinyl)-, 1,1-Dimethylethyl Ester
CAS No.	478303-34-3
Molecular Formula	C13H23O5P
Molecular Weight	290.29 g/mol
Synonyms	tert-Butyl 1-(dimethoxyphosphoryl)-3-cyclopentenecarboxylate; 1-(Dimethoxyphosphinyl)-3-cyclopentenecarboxylic Acid 1,1-Dimethylethyl Ester; tert-Butyl 1-(dimethoxyphosphoryl)cyclopent-3-ene-1-carboxylate; 3-Cyclopentene-1-carboxylic acid, 1-(dimethoxyphosphinyl)-, tert-butyl ester; Phosphonic acid, P-[1-[(1,1-dimethylethoxy)carbonyl]-3-cyclopenten-1-yl]-, dimethyl ester
EINECS	Contact for details

Quality Control

Our production of 3-Cyclopentene-1-Carboxylic Acid, 1-(Dimethoxyphosphinyl)-, 1,1-Dimethylethyl Ester adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity for research and development applications. All products undergo rigorous analytical testing, including HPLC, NMR, and GC-MS, to confirm identity and purity. Certificates of Analysis (COA) detailing all specifications are available upon request to support your quality assurance and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation.

Specification

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

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