707-96-0

Upstream product

• 17977-21-8 4,5,6,7-tetramethyl-3-oxo-indan-1-carboxylic acid 
• 1085234-45-2 C₁₈H₂₂Ti 
• 716-28-9 3-chloro-1-(2,3,4,5-tetramethyl-phenyl)-propan-1-one 
• 488-23-3 1,2,3,4-Tetramethylbenzene 
• 95-93-2 1,2,4,5-tetramethylbenzene 
• 711-43-3 4,5,6,7-tetramethyl-1H-indan-1-one 
• 747-81-9 Bis-(4,5,6-tetramethyl-indanyl-⁽¹⁾)-ether 
• 944-42-3 4,5,6,7-tetramethyl-1-indanol 
• 67-56-1 methanol 
• 1470-94-6 5-hydroxy-2,3-dihydro-1H-indene 

Relevant academic research and scientific papers

1-Chloro-4,5,6,7-tetraalkyldihydroindene formation by reaction of bis(cyclopentadienyl)titanacyclopentadienes with titanium chloride

Reaction of titanacyclopentadienes 1 with TiCl4 afforded 1-chloro-4,5,6,7-tetrasubstituted dihydroindene derivatives 8 in high yields. Copyright

Once cleaved C-C bond was reformed: Reversible C-C bond cleavage of dihydroindenyltitanium complexes

The once cleaved carbon-carbon bond of the Cp moiety in 2 was recombined in indene products. Aslo, we propose a novel mechanism for the cleavage of the carbon-carbon bond of the Cp moiety. Copyright

New indenyl titanium catalysts for syndiospecific styrene polymerizations

A series of multi-methyl-substituted indenes as well as allylindene, n-propylindene, n-but-1-enylindene, and n-butylindene have been prepared in good yields. The substituted indenes were converted into trimethylsilyl derivatives via reactions of intermediate organolithium complexes with chlorotrimethylsilane. The corresponding titanium complexes were synthesized in excellent yields from reactions of the trimethylsilyl derivatives with TiCl4. The titanium complexes were evaluated as styrene polymerization catalysts in toluene solution when activated by methylaluminoxane. In general, catalytic activities decreased with each additional methyl substituent. Syndiospecificities were very high (90-95%).