Description

1,3-Bis[2,6-Bis(1-Methylethyl)Phenyl]-2-Carboxy-1H-Imidazolium Inner Salt is a sophisticated, sterically hindered N-heterocyclic carbene (NHC) precursor with significant utility in advanced organic synthesis. Its value lies in its role as a highly effective ligand for transition metal catalysts, enabling challenging cross-coupling and polymerization reactions with superior selectivity and activity. This compound is essential for R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries who require high-performance catalytic systems.

Application

• As a precursor for N-heterocyclic carbene (NHC) ligands in homogeneous catalysis.
• Key component in catalysts for cross-coupling reactions (e.g., Suzuki-Miyaura, Heck, Sonogashira).
• Ligand for olefin metathesis catalysts used in polymer and fine chemical synthesis.
• Catalyst development for asymmetric synthesis in pharmaceutical intermediate manufacturing.
• Research and development of new organometallic complexes for academic and industrial exploration.
• Potential use in material science for creating novel catalytic surfaces or metal-organic frameworks (MOFs).

Basic Information

Product Name	1,3-Bis[2,6-Bis(1-Methylethyl)Phenyl]-2-Carboxy-1H-Imidazolium Inner Salt
CAS No.	917604-39-8
Molecular Formula	C31H40N2O2
Molecular Weight	472.66 g/mol
Synonyms	1,3-Bis(2,6-diisopropylphenyl)imidazolium-2-carboxylate; 1,3-Bis(2,6-di-iso-propylphenyl)imidazolium carboxylate; SIPr·CO2; 1,3-Bis(2,6-diisopropylphenyl)imidazolinium-2-carboxylate; NHC-CO2 Adduct (SIPr); Carboxyimidazolium Inner Salt; Imidazolium-2-carboxylate Derivative; Stabilized N-Heterocyclic Carbene Precursor
EINECS	Contact for details

Quality Control

Our production of 1,3-Bis[2,6-Bis(1-Methylethyl)Phenyl]-2-Carboxy-1H-Imidazolium Inner Salt adheres to stringent internal quality standards to ensure batch-to-batch consistency and high purity for catalytic applications. All materials are characterized using advanced analytical techniques, including NMR and HPLC. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to support your quality assurance protocols.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) after opening 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%

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