Description

5,5-Dimethyl-2-(Thien-3-Yl)-1,3,2-Dioxaborinane is a high-purity, heterocyclic boronic ester derivative, serving as a critical synthetic intermediate in modern organic chemistry. Its primary value lies in enabling efficient and selective cross-coupling reactions, which are fundamental for constructing complex molecular architectures. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors, particularly for the development of active pharmaceutical ingredients (APIs) and functional organic molecules.

Application

• Pharmaceutical Intermediate: Key building block in Suzuki-Miyaura cross-coupling reactions for synthesizing novel drug candidates and active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the research and production of advanced pesticides, herbicides, and fungicides that require specific thiophene-containing structures.
• Organic Light-Emitting Diodes (OLEDs): Acts as a precursor for creating electron-transport materials and emissive layer components in display and lighting technologies.
• Polymer & Material Science: Employed in the synthesis of conjugated polymers and organic semiconductors for electronic applications.
• Chemical Research & Development: A versatile reagent in academic and industrial R&D labs for exploring new synthetic pathways and creating complex organic molecules.
• Ligand & Catalyst Development: Serves as a starting material for synthesizing novel ligands and catalysts used in asymmetric synthesis and other catalytic processes.

Basic Information

Item	Details
Product Name	5,5-Dimethyl-2-(Thien-3-Yl)-1,3,2-Dioxaborinane
CAS No.	905966-46-3
Molecular Formula	C9H13BO2S
Molecular Weight	196.07 g/mol
Synonyms	3-(5,5-Dimethyl-1,3,2-dioxaborinan-2-yl)thiophene; 2-(3-Thienyl)-5,5-dimethyl-1,3,2-dioxaborinane; 3-Thienylboronic acid 5,5-dimethyl-1,3,2-dioxaborinane ester; 3-Thiopheneboronic acid cyclic ester with neopentyl glycol; Thiophene-3-boronic acid neopentyl glycol ester
EINECS	Contact for details

Quality Control

Our 5,5-Dimethyl-2-(Thien-3-Yl)-1,3,2-Dioxaborinane is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including NMR, HPLC, and GC analysis, to ensure high chemical purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality assurance protocols.

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	White to off-white crystalline powder or solid
Identification (IR)	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.