Description

1,3-Bis(2,6-Di-I-Propylphenyl)-4,5-Dihydroimidazolium Tetrafluoroborate is a high-purity, advanced N-heterocyclic carbene (NHC) precursor salt, essential for modern organometallic catalysis. This compound matters as a critical ligand source for generating highly active and selective transition metal catalysts used in fine chemical and pharmaceutical synthesis. Industrial chemists and R&D professionals in pharmaceutical intermediates, agrochemicals, and specialty polymer production require this material for developing efficient cross-coupling and polymerization reactions.

Application

• Precursor for N-Heterocyclic Carbene (NHC) Ligands: In-situ generation of sterically demanding, electron-rich NHC ligands for transition metal complexes.
• Catalyst Synthesis for Cross-Coupling Reactions: Formation of palladium, nickel, and other metal-NHC catalysts for Buchwald-Hartwig amination, Suzuki-Miyaura, and Heck reactions.
• Olefin Metathesis Catalysis: Key component in the synthesis of second and third-generation Grubbs/Hoveyda-Grubbs type ruthenium catalysts for ring-closing and cross metathesis.
• Polymerization Catalysis: Used in the development of Ziegler-Natta and single-site catalysts for the controlled polymerization of olefins and polar monomers.
• Pharmaceutical Intermediate Synthesis: Enables catalytic steps in the multi-step synthesis of complex drug molecules requiring high selectivity.
• Asymmetric Synthesis: Serves as a chiral ligand precursor for the development of enantioselective catalysts.
• Material Science Research: Applied in the creation of novel organometallic frameworks and functional materials.

Basic Information

Product Name	1,3-Bis(2,6-Di-I-Propylphenyl)-4,5-Dihydroimidazolium Tetrafluoroborate
CAS No.	282109-83-5
Molecular Formula	C27H38BF4I2N2
Molecular Weight	730.22 g/mol
Synonyms	1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium tetrafluoroborate; 1,3-Bis(2,6-diisopropylphenyl)imidazolinium tetrafluoroborate; SIPr·HBF4; 1,3-Bis(2,6-di-iso-propylphenyl)imidazolinium tetrafluoroborate; NHC precursor salt; Saturated NHC salt; Imidazolinium tetrafluoroborate salt; 1,3-Bis(2,6-Di-I-Propylphenyl)imidazolidinium Tetrafluoroborate
EINECS	Contact for details

Quality Control

Our 1,3-Bis(2,6-Di-I-Propylphenyl)-4,5-Dihydroimidazolium Tetrafluoroborate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including NMR, HPLC, and elemental analysis, to ensure high purity and consistent performance as a catalyst precursor. Certificates of Analysis (COA) with detailed chromatographic data and spectroscopic confirmation are provided to guarantee compliance with your research and production specifications.

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). This material is hygroscopic (moisture-sensitive) and must be handled under an inert atmosphere (argon or nitrogen) for long-term storage and to maintain stability. Keep the container tightly sealed when not in use.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
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.