Description

1,3-Bis(2,6-Dibenzhydryl-4-Methylphenyl)-1H-Imidazol-3-Ium Chloride is a highly specialized, sterically hindered N-heterocyclic carbene (NHC) precursor salt. This compound matters as a critical catalyst ligand in advanced organic synthesis, enabling highly efficient and selective cross-coupling and polymerization reactions. It is primarily needed by R&D chemists and process engineers in the pharmaceutical, agrochemical, and advanced materials industries for developing novel compounds and high-performance polymers.

Application

• Catalyst Ligand in Cross-Coupling Reactions: Serves as a precursor for generating N-heterocyclic carbene (NHC) ligands used in Buchwald-Hartwig amination, Suzuki-Miyaura, and Negishi couplings.
• Polymerization Catalyst Component: Employed in the synthesis of specialized polymers, including polyolefins and precision polyesters, where it provides exceptional thermal stability and control over molecular weight.
• Pharmaceutical Intermediate Synthesis: Facilitates the construction of complex molecular architectures found in active pharmaceutical ingredients (APIs), particularly where traditional phosphine ligands are ineffective.
• Agrochemical Research: Used in the development of novel crop protection agents and herbicides that require specific stereochemistry and functional group tolerance.
• Material Science Research: Key component in the development of organometallic frameworks (OMFs) and catalysts for green chemistry applications.
• Asymmetric Synthesis: Enables the development of chiral NHC-metal complexes for enantioselective transformations in fine chemical manufacturing.

Basic Information

Product Name	1,3-Bis(2,6-Dibenzhydryl-4-Methylphenyl)-1H-Imidazol-3-Ium Chloride
CAS No.	1218778-19-8
Molecular Formula	C57H49ClN2
Molecular Weight	797.45 g/mol
Synonyms	1,3-Bis(2,6-Bis(diphenylmethyl)-4-methylphenyl)imidazolium Chloride; IMes·HCl; 1,3-Bis(2,6-bis(benzhydryl)-4-methylphenyl)imidazolium Chloride; N,N'-Bis(2,6-bis(diphenylmethyl)-4-methylphenyl)imidazolium Chloride; 1,3-Bis(2,6-dibenzhydryl-4-methylphenyl)imidazolium Chloride; IMesHCl; Sterically Hindered NHC Salt Precursor; (IMes)HCl
EINECS	Contact for details

Quality Control

Our 1,3-Bis(2,6-Dibenzhydryl-4-Methylphenyl)-1H-Imidazol-3-Ium Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and elemental analysis, to ensure high purity and batch-to-batch consistency. We provide comprehensive Certificates of Analysis (COA) detailing all specifications, and can support custom synthesis to meet specific purity or packaging requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed in a dry environment. For long-term storage, consider storing under an inert atmosphere such as argon or nitrogen to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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