Description

1,3-Bis(2,6-Di-I-Propylphenyl)-4,5-Dihydroimidazol-2-Ylidine, Min. 98% is a high-purity, sterically hindered N-heterocyclic carbene (NHC) precursor, widely recognized for its exceptional stability and utility as a ligand in organometallic chemistry. This compound is critical for facilitating challenging cross-coupling and polymerization reactions by forming highly active and selective metal complexes. It is an essential reagent for R&D and production in pharmaceutical synthesis, advanced material science, and specialty chemical catalysis, where precise control over reaction pathways is paramount.

Application

• Catalyst Ligand in Organic Synthesis: Serves as a superior ligand for palladium, nickel, and other transition metal catalysts used in C-C and C-N cross-coupling reactions (e.g., Suzuki, Heck, Buchwald-Hartwig amination).
• Polymerization Initiator: Key component in the production of specialized polymers via ring-opening metathesis polymerization (ROMP) and other metal-mediated processes.
• Pharmaceutical Intermediate: Used in the synthesis of complex active pharmaceutical ingredients (APIs) requiring highly selective catalytic steps.
• Material Science Research: Employed in the development of novel organometallic frameworks, conductive polymers, and advanced nanomaterials.
• Asymmetric Catalysis: Facilitates the creation of chiral metal complexes for the production of enantiomerically pure compounds.
• Academic & Industrial R&D: A fundamental research chemical for exploring new catalytic methodologies and reaction mechanisms.

Basic Information

Item	Details
Product Name	1,3-Bis(2,6-Di-I-Propylphenyl)-4,5-Dihydroimidazol-2-Ylidine, Min. 98%
CAS No.	258278-28-3
Molecular Formula	C27H36N2
Molecular Weight	388.59 g/mol
Synonyms	1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium-2-ide; SIPr (common abbreviation); 1,3-Bis(2,6-diisopropylphenyl)imidazolidin-2-ylidene; N-Heterocyclic Carbene (NHC) Precursor; 1,3-Bis(2,6-di-iso-propylphenyl)imidazolidinylidene; 1,3-Bis(2,6-Diisopropylphenyl)imidazolidin-2-ylidene; Saturated NHC ligand precursor; CAS 258278-28-3
EINECS	Contact for details

Quality Control

Our 1,3-Bis(2,6-Di-I-Propylphenyl)-4,5-Dihydroimidazol-2-Ylidine is manufactured under strict quality protocols to ensure batch-to-batch consistency and high performance. The product undergoes rigorous analytical testing, including HPLC for purity verification and NMR for structural confirmation. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment to guarantee compliance with your research and production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	Min. 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 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.