Description

Pd(0)-1,3-Divinyl - 1,1,3,3-Tetramethyldisiloxan-1,3-Bis-(2,4,6-Trimethylphenyl)-Imidazol-2-Yliden CAS NO 441018-46-8 is a highly specialized, air-sensitive palladium(0) N-heterocyclic carbene (NHC) complex, widely recognized for its exceptional catalytic activity and selectivity. This compound is engineered to provide superior performance in demanding cross-coupling reactions, offering enhanced stability and reactivity compared to traditional phosphine-based catalysts. It is an indispensable tool for research and development chemists and process engineers in the pharmaceutical, agrochemical, and advanced materials sectors, where precise and efficient bond formation is critical.

Application

• Pharmaceutical Intermediate Synthesis: A premier catalyst for key C-C and C-N bond-forming reactions, such as Suzuki-Miyaura, Buchwald-Hartwig, and Heck couplings, in the production of active pharmaceutical ingredients (APIs).
• Agrochemical Manufacturing: Enables the efficient synthesis of complex, biologically active molecules for crop protection agents and herbicides.
• Advanced Material Development: Facilitates polymerization and the creation of novel organic electronic materials, including OLEDs and conductive polymers.
• Fine Chemical Production: Used in the synthesis of specialty chemicals, flavors, and fragrances requiring high selectivity and mild reaction conditions.
• Academic & Industrial R&D: A valuable reagent for methodological development and exploring new catalytic transformations in both academic and industrial research laboratories.
• Process Chemistry Optimization: Employed to develop more efficient, scalable, and cost-effective synthetic routes with lower catalyst loadings.

Basic Information

Item	Details
Product Name	Pd(0)-1,3-Divinyl - 1,1,3,3-Tetramethyldisiloxan-1,3-Bis-(2,4,6-Trimethylphenyl)-Imidazol-2-Yliden
CAS No.	441018-46-8
Molecular Formula	C34H50N2OSi2Pd
Molecular Weight	689.43 g/mol
Synonyms	Palladium(0) 1,3-Divinyltetramethyldisiloxane Diimidazolylidene Complex; (1,3-Divinyl-1,1,3,3-tetramethyldisiloxane)bis(2,4,6-trimethylphenylimidazol-2-ylidene)palladium(0); Pd(dvtms)(IMes)2; Pd(0)-NHC Complex; Palladium-NHC Catalyst; PEPPSI™-type Catalyst; Air-Stable Pd(0) Precatalyst; Siloxane-Bridged Bis(NHC)Pd(0) Complex
EINECS	Contact for details

Quality Control

Every batch of our Pd(0)-NHC catalyst is manufactured and tested under strict quality management systems to ensure exceptional purity and batch-to-batch consistency. Our quality control protocols include advanced analytical techniques to verify identity, potency, and the absence of critical metallic impurities. A comprehensive Certificate of Analysis (COA) detailing assay, purity, and residual solvent levels is provided with each shipment to support your quality assurance and regulatory compliance needs.

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. The product is easily oxidized and moisture-sensitive; allow the sealed container to equilibrate to room temperature before opening to prevent condensation. Handle and store in a dry, well-ventilated area.

Specification

Item	Specification
Appearance	Yellow to orange crystalline solid or powder
Identification (IR)	Conforms to structure
Assay (Pd Content)	≥ 15.4% (Theoretical: 15.44%)
Purity (HPLC)	≥ 98.0%
Residual Solvents (GC)	Meets ICH guidelines
Heavy Metals (ICP-MS)	< 10 ppm total

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