145193-44-8

Upstream product

• 145193-42-6 1-<4-<1,1',1'',1''',1''''-(5-Chloro-1,3-cyclopentadien-1,2,3,4,5-pentayl)pentakis>>benzoesaeure pentaethylester 
• 5798-75-4 Ethyl 4-bromobenzoate 
• 145193-41-5 1-<4-<1,1',1'',1''',1''''-(5-Chloro-1,3-cyclopentadien-1,2,3,4,5-pentayl)pentakis>>benzoesaeure 
• 145193-37-9 1,2,3,4,5-Penta(4-acetylphenyl)-1,3-cyclopentadiene 
• 2519-10-0 1,2,3,4,5-pentaphenylcyclopentadiene 
• 542-92-7 cyclopenta-1,3-diene 

Downstream Products

• 145193-55-1 (p-EtOCOC₆H₄)5C₅Tl 
• 1257635-98-5 diethyl all-cis-1,2,3-tris(4-ethoxycarbonylphenyl)-2,3-dihydro-1H-cyclopenta[l]phenantrene-6,9-dicarboxylate 
• 1257635-93-0 (3R*,4S*,5S*)-1,2,3,4,5-pentakis(4-ethoxycarbonylphenyl)cyclopentene 

Relevant academic research and scientific papers

Palladium-catalyzed arylation of cyclopentadienes

Cyclopentadiene and metallocenes, typically zirconocene dichloride, are suitable substrates for multiple arylations with aryl bromides in palladium-catalyzed reactions. Thus, various aryl bromides bearing either an electron-donating or an electron-withdrawing substituent can react with these substrates to afford the corresponding 1,2,3,4,5-pentaaryl-1,3-cyclopentadienes in a single preparative step. Derivatives of cyclopentadiene, including di- and trisubstituted cyclopentadienes, and indene are arylated in a similar fashion.

1--(4,1-phenylene)-alkanones and -benzoic Acid Pentaalkyl Esters and their Sodium- and Thallium(I) Complexes

Pentaphenylcyclopentadiene (1) reacts with acyl chlorides RC(O)Cl (R = CH3, C3H7, C5H11, C7H15) with formation of the corresponding (1,4-phenylene) alkanones C5H(C6H4C(O)R-4)5 (2a, 2c, 2d and 2e). 2a reacts with KOCl in