260054-47-5

Basic information

• Product Name: 1,3-Bis(2,4,6-trimethylphenyl)-2-(trichloromethyl)imidazolidine
• Synonyms: 1,3-Bis(2,4,6-trimethylphenyl)-2-(trichloromethyl)imidazolidine
• CAS NO: 260054-47-5
• Molecular Formula: C₂₂H₂₇Cl₃N₂
• Molecular Weight: 425.82218
• Mol File: 260054-47-5.mol
• Article Data: 6

Chemical Properties

• Appearance: /
• Density: 1.224
• CAS DataBase Reference: 1,3-Bis(2,4,6-trimethylphenyl)-2-(trichloromethyl)imidazolidine(CAS DataBase Reference)
• NIST Chemistry Reference: 1,3-Bis(2,4,6-trimethylphenyl)-2-(trichloromethyl)imidazolidine(260054-47-5)
• EPA Substance Registry System: 1,3-Bis(2,4,6-trimethylphenyl)-2-(trichloromethyl)imidazolidine(260054-47-5)

Safety Data

• Hazardous Substances Data: 260054-47-5(Hazardous Substances Data)

Usage

Use

Stabilizer in polyvinyl chloride (PVC) and other polymers

Physical state

White, crystalline solid

Molecular weight

407.78 g/mol

Function

Prevents degradation and discoloration of PVC and other polymers caused by heat and ultraviolet radiation

Mechanism

Scavenges hydrogen chloride and other acidic degradation products

Additional uses

Stabilizer in adhesives, coatings, and sealants

Safety precautions

Toxic if ingested or absorbed through the skin; handle with care and follow proper safety measures

Upstream product

• 173035-10-4 1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazolium chloride 
• 1907-33-1 lithium tert-butoxide 
• 75105-48-5 N,N'-dimesitylformamidine 
• 75-87-6 chloral 
• 134030-21-0 N,N'-dimesityl-1,2-ethanediamine 
• 258278-23-8 N¹,N²-dimesitylethane-1,2-diaminium chloride 
• 88-05-1 2,4,6-trimethylaniline 
• 56222-36-7 (E,E)-N¹,N²-bis(2,4,6-trimethylphenyl)ethane-1,2-diimine 
• 782479-45-2 1,3-di(2,4,6-trimethylphenyl)-2-(pentafluorophenyl)-2,4,5-trihydroimidazole 
• 67-66-3 chloroform 
• 173035-11-5 1,3-bis(2,4,6-trimethylphenyl)imidazolidin-2-ylidene 

Downstream Products

• 246047-72-3 tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride 
• 173035-11-5 1,3-bis(2,4,6-trimethylphenyl)imidazolidin-2-ylidene 

Relevant articles and documents

C-H insertion reactions of nucleophilic carbenes

Syntheses and characterizations are described for C-H insertion products derived from 1,3-dimesityldihydroimidazol-2-ylidene (1) with acetylene, acetonitrile, methyl phenyl sulfone, and chloroform. In the reaction with acetylene, both acetylenic H-atoms a

Synthesis and NMR study of N-heterocyclic carbenes (NHC) precursors derived from troger's base

Since the discovery of olefin metathesis reactions, various catalysts have been developed but those based on Ruthenium and N-heterocyclic carbenes (NHC) ligands are particularly more efficient. Herein, we report a synthesis of NHC precursors derived from

Synthesis and activity of ruthenium alkylidene complexes coordinated with phosphine and N-heterocyclic carbene ligands

This paper reports the synthesis and characterization of a variety of ruthenium complexes coordinated with phosphine and N-heterocyclic carbene (NHC) ligands. These complexes include several alkylidene derivatives of the general formula (NHC)(PR3)(Cl)2Ru=CHR′, which are highly active olefin metathesis catalysts. Although these catalysts can be prepared adequately by the reaction of bis(phosphine) ruthenium alkylidene precursors with free NHCs, we have developed an alternative route that employs NHC-alcohol or -chloroform adducts as "protected" forms of the NHC ligands. This route is advantageous because NHC adducts are easier to handle than their free carbene counterparts. We also demonstrate that sterically bulky bis(NHC) complexes can be made by reaction of the pyridine-coordinated precursor (NHC)(py)2(Cl)2Ru=CHPh with free NHCs or NHC adducts. Two crystal structures are presented, one of the mixed bis(NHC) derivative (H2IMes)(IMes)(Cl)2Ru=CHPh, and the other of (PCy3)(Cl)(CO)Ru[η2-(CH2- C6H2Me2)(N2 C3H4)(C6H2Me3)], the product of ortho methyl C-H bond activation. Other side reactions encountered during the synthesis of new ruthenium alkylidene complexes include the formation of hydridocarbonyl-chloride derivatives in the presence of primary alcohols and the deprotonation of ruthenium vinylcarbene ligands by KOBut. We also evaluate the olefin metathesis activity of NHC-coordinated complexes in representative RCM and ROMP reactions.