1282-43-5

Basic information

• Product Name: titanium(4+) chloride cyclopenta-2,4-dienide 1-methylcyclopenta-2,4-dienide (1:2:1:1)
• CAS NO: 1282-43-5
• Molecular Formula: C₁₁H₁₂Cl₂Ti
• Molecular Weight: 262.986
• Mol File: 1282-43-5.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 80.4°C at 760 mmHg
• Vapor Pressure: 94.8mmHg at 25°C
• CAS DataBase Reference: titanium(4+) chloride cyclopenta-2,4-dienide 1-methylcyclopenta-2,4-dienide (1:2:1:1)(CAS DataBase Reference)
• NIST Chemistry Reference: titanium(4+) chloride cyclopenta-2,4-dienide 1-methylcyclopenta-2,4-dienide (1:2:1:1)(1282-43-5)
• EPA Substance Registry System: titanium(4+) chloride cyclopenta-2,4-dienide 1-methylcyclopenta-2,4-dienide (1:2:1:1)(1282-43-5)

Safety Data

• Hazardous Substances Data: 1282-43-5(Hazardous Substances Data)

Upstream product

• 7550-45-0 titanium tetrachloride 
• 1270-98-0 cyclopentadienyl titanium(IV) trichloride 

Downstream Products

• 78206-02-7 mono(η(5)-methylcyclopentadienyl)tris(N-methyl-N-phenyldithiocarbamato)titanium(IV) 
• 87729-05-3 (C₅H₅)(C₅H₄CH₃)TiCH₂Al(CH₃)2Cl 
• 1184-58-3 dimethylaluminum chloride 

Relevant articles and documents

An investigation of the reaction of bis(cyclopentadienyl)titanium dichlorides with trimethylaluminum. Mechanism of an α-hydrogen abstraction reaction

The reaction of Me3Al with Cp2TiCl2 and its derivatives has been studied. Synthetic procedures for the preparation of (C5R5)(C5H5)TiCl2 from (C5R5)Li and (C5H5)TiCl3 were developed, and sources of the major byproducts (C5H5)2TiCl2 and (C5R5)2TiCl2 are suggested. The derivatives studied were (C5R5) = C5H4SiMe3, 1,2,4-trimethylcyclopentadienyl, (CH3)5C5, indenyl, 1,3-Ph2C5H3, and (CH3)C5H4. All of these complexes reacted with 1 equiv of (CH3)3Al to produce Cp2Ti(CH3)Cl·Al(CH3)2Cl which would react further with a second equivalent of (CH3)3Al to yield a Cp2TiCH2AlMe2Cl derivative. The isotope effect for the parent reaction was 2.9. Substituents on the ring slowed the rate of methylene formation. A mechanism for α-hydrogen abstraction from a Ti-(CH3)Cl unit by an aluminum alkyl is proposed in which the Lewis acidic aluminum alkyl activates the titanium methyl group by complexation with the chlorine. The resulting aluminate then serves as a strong Lewis base to abstract the α-hydrogen.