15999-74-3

Upstream product

• 542-92-7 cyclopenta-1,3-diene 
• 345-92-6 4,4'-Difluorobenzophenone 
• 16733-97-4 cyclopentadienyllithium 

Downstream Products

• 1217619-87-8 N-(2,6-difluorophenyl)-7-[bis(4-fluorophenyl)methylidene]bicyclo[2.2.1]hept-2-ene-5,6-dicarboximide 
• 1217657-52-7 N-(2,4,6-trifluorophenyl)-7-[bis(4-fluorophenyl)methylidene]bicyclo[2.2.1]hept-2-ene-5,6-dicarboximide 
• 1217832-38-6 N-phenyl-7-[bis(4-fluorophenyl)methylidene]bicyclo[2.2.1]hept-2-ene-5,6-dicarboximide 
• 1217792-38-5 N-(2,3,4,5,6-pentafluorophenyl)-7-[bis(4-fluorophenyl)methylidene]bicyclo[2.2.1]hept-2-ene-5,6-dicarboximide 
• 77669-73-9 1-{5-[Bis-(4-fluoro-phenyl)-methylene]-cyclopenta-1,3-dienyl}-ethanone 
• 77669-74-0 1-{4-Acetyl-5-[bis-(4-fluoro-phenyl)-methylene]-cyclopenta-1,3-dienyl}-ethanone 

Relevant academic research and scientific papers

Visible-light-induced [4 + 2] cycloaddition of pentafulvenes by organic photoredox catalysis

We have developed thioxanthylium photoredox catalyzed [4 + 2] cycloaddition of pentafulvenes at room temperature under green light irradiation, which affords tetrahydrocyclopenta[b]chromenes with high regioselectivities. The present reaction provides a sustainable approach to carry out the cycloaddition of pentafulvenes without the use of transition metal catalysts or high-temperature conditions. This procedure enables a mild and straightforward access to 1,3a,9,9a-tetrahydrocyclopenta[b]chromenes. The quantum yield of the reaction (Φ = 0.15) indicates that the reaction would mainly proceed via photocatalytic pathways.

FLUORENE COMPOUND, TRANSITION METAL COMPOUND, CATALYST FOR OLEFIN POLYMERIZATION AND MANUFACTURING METHOD FOR OLEFIN POLYMER

PROBLEM TO BE SOLVED: To provide a novel fluorene compound useful as an intermediate of a transition metal compound for olefin polymerization, for a catalyst for olefin polymerization capable of polymerizing at high temperature, a transition metal compound having the fluorene ring as a partial structure as a catalyst component for olefin polymerization, the catalyst for olefin polymerization containing the transition metal compound and a method for manufacturing the olefin polymer. SOLUTION: There is provided a fluorene transition metal complex compound represented by a structure of the following 2A-2 as an example of a transition metal compound which becomes the catalyst for olefin polymerization. COPYRIGHT: (C)2016,JPOandINPIT

X-ray crystal structures of p-halogenated 6, 6-diphenylfulvenes

Crystal structures of a series of p-halogenated 6, 6-diphenylfulvenes 2-5 are reported and comparatively discussed including the known structure of the nonhalogenate parent compound 1. The molecular structures show twisted conformations of the plane aryl