Description

3-Me-2-Butenylidenebis(Tricyclohexylphosphine)Dichlororuthenium is a highly specialized organometallic complex, specifically a Grubbs-Hoveyda type ruthenium carbene catalyst precursor. This compound matters for its critical role in facilitating efficient and selective olefin metathesis reactions, a cornerstone of modern synthetic organic chemistry and advanced materials science. It is primarily needed by research institutions and industrial R&D departments focused on developing novel pharmaceuticals, fine chemicals, polymers, and functional materials, where precise control over carbon-carbon double bond formation is essential. CAS NO 194659-03-5.

Application

• Pharmaceutical Intermediate Synthesis: Enabling key ring-closing metathesis (RCM) and cross-metathesis (CM) steps in the production of complex active pharmaceutical ingredients (APIs).
• Advanced Polymer & Material Science: Serving as a catalyst precursor for ring-opening metathesis polymerization (ROMP) to create specialty polymers with tailored properties.
• Fine Chemical & Agrochemical Manufacturing: Facilitating the synthesis of complex molecular architectures for high-value specialty chemicals and crop protection agents.
• Academic & Industrial R&D: A vital tool for chemists exploring new synthetic methodologies and catalytic processes in laboratory-scale research.
• Oleochemical Modification: Potential use in the metathesis of natural oils and fatty acid derivatives to create novel bio-based chemicals.

Basic Information

Product Name	3-Me-2-Butenylidenebis(Tricyclohexylphosphine)Dichlororuthenium
CAS No.	194659-03-5
Molecular Formula	C41H72Cl2P2Ru
Molecular Weight	789.91 g/mol
Synonyms	Grubbs-Hoveyda II Catalyst Precursor; Dichloro[1,3-bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene](2-isopropoxybenzylidene)ruthenium(II) (common mis-assignment check); (1,3-Bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene)dichloro(2-isopropoxybenzylidene)ruthenium; Hoveyda-Grubbs Catalyst 2nd Generation; HG II; Zhan Catalyst 1B; Ruthenium, dichloro[1,3-bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene](2-isopropoxybenzylidene)-; Dichloro(o-isopropoxyphenylmethylene)(tricyclohexylphosphine)ruthenium (related structure).
EINECS	Contact for details

Quality Control

Every batch of our 3-Me-2-Butenylidenebis(Tricyclohexylphosphine)Dichlororuthenium undergoes rigorous analytical testing to ensure high catalytic activity and batch-to-batch consistency, critical for reproducible research and process development. Our quality assurance protocol includes advanced spectroscopic and chromatographic techniques. Certificates of Analysis (COA) detailing purity, identity, and performance-related parameters are provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. For long-term stability, store under an inert atmosphere (argon or nitrogen) at 2-8°C. This compound is easily oxidized and moisture-sensitive; allow the sealed container to reach ambient temperature before opening to minimize condensation and exposure to air.

Specification

Item	Specification
Appearance	Purple to brown crystalline solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95%
Solubility	Soluble in common organic solvents (DCM, toluene, THF)

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