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Downstream Products

• 64465-03-8 1,2,3,4-tetraphenylfluorene 
• 78112-64-8 2,3-Biphenylene-1,4-diphenyfluorene 
• 78112-61-5 1,4-di-p-tolyl-2,3-(1',8'-naphthylene)fluorene 
• 83808-78-0 9,15-Di-p-tolyl-14H-fluoreno<2,3-a>aceanthrylene 
• 83808-77-9 9,15-Di-p-tolyl-10H-fluoreno<3,2-a>aceanthrylene 
• 83-33-0 inden-1-one 
• 64465-05-0 1,4-Diethyl-2,3-diphenyl-9H-fluorene 
• 64465-20-9 C₂₇H₂₂ 
• 64465-06-1 4-Methyl-1,2,3-triphenyl-9H-fluorene 
• 64465-18-5 C₃₅H₂₂ 
• 64465-04-9 1,4-dimethyl-2,3-diphenyl-fluorene 
• 78112-48-8 2,3-Diphenyl-1,4-di-p-tolylfluorene 

Relevant academic research and scientific papers

Spontaneous resolution versus formation of racemic crystals of indenylpotassium complexes

During a study of stereochemically labile organometallic reagents, we found that crystallisation of [K(ind)(pmdta)]n (ind = indenyl, pmdta = N,N,N',N'',N''-pentamethyldiethylenetriamine) from tetrahydrofuran (THF) gave rise to three different crystalline phases depending on the concentration. The more concentrated solutions gave racemic crystals of the previously known coordination polymer [K(ind)(pmdta)]n, a-1. More dilute solutions gave crystals of a new phase, b-1, which was found to undergo spontaneous resolution. From even more dilute solutions, we were able to isolate a chiral inclusion compound with THF, 2, which also undergoes spontaneous resolution. Crystals of b-1 and 2 were enantiomerically pure, and since b-1 is a reactive organometallic reagent, attempts were made to use the crystals in enantioselective synthesis. Reacting single crystals with N-chlorosuccinimide gave rise to chiral 1-chloroindene, but no enantiomeric excess was observed.