Description

1,3-Bis(2,6-diisopropylphenyl)imidazol-2-ylidene is a prominent member of the N-heterocyclic carbene (NHC) ligand family, valued for its exceptional steric bulk and electron-donating properties. This compound matters as a critical catalyst component, enabling highly efficient and selective transformations in advanced organic synthesis and polymer chemistry. It is primarily needed by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries for developing novel synthetic routes and materials.

Application

• Homogeneous Catalysis: Serving as a privileged ligand for transition metals (e.g., Pd, Ru, Au, Cu) in cross-coupling, metathesis, and hydrogenation reactions.
• Pharmaceutical Intermediates: Facilitating the synthesis of complex, high-value drug candidates through robust catalytic cycles.
• Polymerization Catalyst: Acting as a co-catalyst or ligand in the production of advanced polymers and elastomers with controlled architectures.
• Organocatalysis: Utilized as a free carbene or precursor in various metal-free organic transformations.
• Material Science Research: Employed in the development of novel catalytic materials, metal-organic frameworks (MOFs), and surface modifications.
• Agrochemical Synthesis: Enabling the efficient construction of active ingredients for crop protection agents.

Basic Information

Product Name	1,3-Bis(2,6-diisopropylphenyl)imidazol-2-ylidene
CAS No.	649736-75-4
Molecular Formula	C27H36N2
Molecular Weight	388.59 g/mol
Synonyms	1,3-Bis(2,6-diisopropylphenyl)imidazolium ylide; IPr·HCl (common precursor salt name); SIPr (saturated analog); 1,3-Bis(2,6-diisopropylphenyl)imidazolin-2-ylidene; N,N'-Bis(2,6-diisopropylphenyl)imidazol-2-ylidene; IPr carbene; NHC ligand IPr; CAS 649736-75-4
EINECS	Contact for details

Quality Control

Our 1,3-Bis(2,6-diisopropylphenyl)imidazol-2-ylidene is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including NMR, HPLC, and elemental analysis, to ensure high purity and consistency. Certificates of Analysis (COA) detailing all specifications are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic and potentially air-sensitive nature, long-term storage under an inert atmosphere (argon or nitrogen) in a cool, dry place (15-25°C) is recommended to maintain stability and performance.

Specification

Item	Specification
Appearance	Off-white to pale yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.5%

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