Description

2-Thiophenecarboxaldehyde, 4-(2-Ethylhexyl)-5-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)- is a high-value, multifunctional organoboron building block designed for advanced synthetic chemistry. This compound matters because it combines the unique electronic properties of a thiophene aldehyde with a pinacol boronate ester, enabling precise cross-coupling reactions like Suzuki-Miyaura. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and materials science industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs) and drug candidates, particularly those containing thiophene heterocycles.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and insecticides where the thiophene moiety imparts specific biological activity.
• Organic Electronic Materials: Serves as a monomer or building block for conjugated polymers and small molecules used in organic light-emitting diodes (OLEDs), organic photovoltaics (OPVs), and field-effect transistors (OFETs).
• Suzuki-Miyaura Cross-Coupling: The pinacol boronate ester group makes it an ideal partner for palladium-catalyzed cross-coupling with aryl/heteroaryl halides, enabling efficient carbon-carbon bond formation.
• Ligand and Catalyst Development: Utilized in the preparation of novel ligands for catalysis or as a functional handle in metal-organic frameworks (MOFs).
• Chemical Research & Development: Employed in academic and industrial labs for exploring new synthetic methodologies and creating libraries of novel compounds for screening.

Basic Information

Item	Details
Product Name	2-Thiophenecarboxaldehyde, 4-(2-Ethylhexyl)-5-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)-
CAS No.	2344786-93-0
Molecular Formula	C19H33BO3S
Molecular Weight	352.34 g/mol
Synonyms	4-(2-Ethylhexyl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene-2-carboxaldehyde; 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-4-(2-ethylhexyl)thiophene-2-carbaldehyde; 4-(2-Ethylhexyl)thiophene-2-carboxaldehyde-5-boronic acid pinacol ester; 2-Formyl-4-(2-ethylhexyl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene; (2-Formyl-4-(2-ethylhexyl)thiophen-5-yl)boronic acid pinacol ester
EINECS	Contact for details

Quality Control

Our 2-Thiophenecarboxaldehyde, 4-(2-Ethylhexyl)-5-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)- is produced under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, NMR (1H, 13C, 11B), and GC-MS, to ensure identity, purity, and consistency. Certificates of Analysis (COA) with detailed specifications are provided for each lot, supporting 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). Under these conditions, the product is stable for extended periods. For long-term storage, consider storing under an inert atmosphere (argon or nitrogen) to maintain optimal purity.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid or solid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 95% (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.