Description

Cyclopentylboronic Acid Mida Ester is a highly valuable, bench-stable organoboron reagent designed for advanced synthetic chemistry. Its core value lies in providing a protected boronic acid functionality, which significantly enhances stability and handling compared to its free acid counterpart, facilitating complex multi-step syntheses. This compound is essential for researchers and process chemists in the pharmaceutical and agrochemical industries, particularly for Suzuki-Miyaura cross-coupling reactions and the construction of complex molecular architectures.

Application

• Key intermediate in Suzuki-Miyaura cross-coupling reactions for C-C bond formation.
• Building block for the synthesis of active pharmaceutical ingredients (APIs) and drug candidates.
• Precursor in the development of agrochemicals and specialty fine chemicals.
• Used in material science research for creating novel organic frameworks.
• Facilitates iterative cross-coupling strategies due to the stability of the MIDA (N-methyliminodiacetic acid) protecting group.
• Enables orthogonal reactivity in complex, multi-functional molecule synthesis.

Basic Information

Product Name	Cyclopentylboronic Acid Mida Ester
CAS No.	117311-84-9
Molecular Formula	C12H20BNO4
Molecular Weight	253.10 g/mol
Synonyms	Cyclopentyl MIDA Boronate; Cyclopentylboronic Acid N-Methyliminodiacetic Acid Ester; N-Methyliminodiacetic Acid Cyclopentylboronate; Cyclopentyl-B(MIDA); (Cyclopentyl)-4,6,9-Trioxa-5-bora-1-azaspiro[4.4]nonane; B-Cyclopentyl-5,5-dimethyl-1,3,2-dioxaborinane-4,6-dione (common misnomer); Cyclopentylboronic Acid MIDA Complex; CAS 117311-84-9
EINECS	Contact for details

Quality Control

Our Cyclopentylboronic Acid Mida Ester is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including NMR (¹H, ¹³C, ¹¹B), HPLC, and FT-IR to confirm identity and purity. Certificates of Analysis (COA) detailing all specifications are provided to ensure traceability and batch-to-batch consistency for your critical research and development projects.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept under an inert atmosphere (e.g., nitrogen or argon) after opening to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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