Description

4-Formyl-trans-β-Styrylboronic Acid Pinacol Ester is a high-purity, functionalized boronic ester building block designed for advanced organic synthesis. This compound is valued for its dual functionality, featuring both a formyl group and a protected boronic acid moiety, enabling its use in sequential cross-coupling and subsequent derivatization reactions. It is primarily sought by researchers and process chemists in the pharmaceutical, agrochemical, and materials science industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for Suzuki-Miyaura cross-coupling reactions.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides that require specific aromatic and olefinic frameworks.
• Material Science & OLEDs: Serves as a precursor for creating conjugated organic molecules used in organic light-emitting diodes (OLEDs) and other electronic materials.
• Chemical Biology & Probe Development: Utilized for synthesizing molecular probes and bioconjugates due to its reactive aldehyde and boronate ester groups.
• Academic & R&D Laboratories: Employed in methodological development and the exploration of new catalytic cycles in organoboron chemistry.
• Liquid Crystal & Polymer Synthesis: Acts as a monomer or intermediate for creating specialized polymers and liquid crystalline materials with tailored properties.

Basic Information

Product Name	4-Formyl-trans-β-Styrylboronic Acid Pinacol Ester
CAS No.	149777-85-5
Molecular Formula	C17H21BO3
Molecular Weight	284.16 g/mol
Synonyms	trans-4-Formylstyrylboronic Acid Pinacol Ester; (E)-4-Formylstyrylboronic Acid Pinacol Ester; 4-Formyl-β-styrylboronic Acid Pinacol Ester; 4-Vinylbenzaldehyde Pinacol Boronate; (E)-2-(4-Formylstyryl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane; Pinacol (E)-4-Formylstyrylboronate; Boronic acid, B-[(1E)-2-(4-formylphenyl)ethenyl]-, 1,1-dimethylethyl ester
EINECS	Contact for details

Quality Control

Our 4-Formyl-trans-β-Styrylboronic Acid Pinacol Ester is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure high chemical purity and structural integrity. Certificates of Analysis (COA) documenting identity, purity, and impurity profiles are available for every lot upon request, supporting your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This material is light-sensitive and should be handled under appropriate conditions to maintain stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details

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