1197159-88-8

Basic information

• Product Name: (1,3-bis(2,4,6-trimethylphenyl)imidazolin-2-ylidene)trichloridoaluminum
• Synonyms: (1,3-bis(2,4,6-trimethylphenyl)imidazolin-2-ylidene)trichloridoaluminum
• CAS NO: 1197159-88-8
• Molecular Weight: 439.791
• Mol File: 1197159-88-8.mol

Chemical Properties

• CAS DataBase Reference: (1,3-bis(2,4,6-trimethylphenyl)imidazolin-2-ylidene)trichloridoaluminum(CAS DataBase Reference)
• NIST Chemistry Reference: (1,3-bis(2,4,6-trimethylphenyl)imidazolin-2-ylidene)trichloridoaluminum(1197159-88-8)
• EPA Substance Registry System: (1,3-bis(2,4,6-trimethylphenyl)imidazolin-2-ylidene)trichloridoaluminum(1197159-88-8)

Safety Data

• Hazardous Substances Data: 1197159-88-8(Hazardous Substances Data)

Upstream product

• 7446-70-0 aluminium trichloride 
• 173035-11-5 1,3-bis(2,4,6-trimethylphenyl)imidazolidin-2-ylidene 
• 75-77-4 chloro-trimethyl-silane 

Relevant articles and documents

Preparation of NHC Stabilized Al(III)fluorides: Fluorination of [(SIMes)AlMe3] with SF4 or Me3SnF

Various reaction routes have been developed to synthesize the N-heterocyclic carbene (NHC) stabilized Al(III) fluorides [(SIMes)Al(F)3] (2) and [(SIMes)Al(F)Me2] (3) through fluorination of [(SIMes)AlMe3] (1) (SIMes: 1,3-bis(2,4,6-trimethylphenyl)-imidazolidin-2-ylidene) with fluorinating agents such as SF4, SF6 and Me3SnF. The reactivity of 2 was investigated towards a F/Cl exchange reaction by treating it with Me3SiCl.

CO2, magnesium, aluminum, and zinc adducts of n-heterocyclic carbenes as (latent) catalysts for polyurethane synthesis

A series of magnesium, aluminum, and zinc complexes of imidazol-2-ylidene-, imidazolin-2-ylidene-, and tetrahydro- pyrimidin-2-ylidene-derived N-heterocyclic carbenes (NHCs) was prepared. In addition, both symmetrical and un- symmetrical CO2-protected imidazol-2-ylidenes and imid-azolin-2-ylidenes were prepared. Selected single-crystal X- ray structures are reported. All compounds were investigated for their catalytic behavior in (poly)urethane (PUR) synthesis. Out of nine different compounds, the dimeric complex [Zn(CH3COO)2(1,3-dimesitylimidazol-2-ylidene)]2 (7) proved to be the most active one, rivaling the industrially most relevant catalyst dibutyltin dilaurate in terms of catalytic activity. Even more important, the Mg- and Zn-derived NHC complexes as well as the CO2-protected imidazol-2-ylidenes displayed pronounced latent behavior combined with high catalytic activity in selected cases, rivaling and exceeding the industrially relevant latent catalyst phenylmercury neo-decanoate. This allows for creating one-component PUR systems with significant pot lives. Pseudo-second-order kinetics were found for all Mg- and Zn-based NHC complexes as well as for all CO2-protected NHCs indicating fast precatalyst decomposition prior to (poly)urethane formation. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009.