14718-07-1

Upstream product

• 24018-00-6 2,2'-dibenzoylbiphenyl 
• 3299-84-1 9-benzoyl-9-phenylfluorene 
• 4407-88-9 9-(α-hydroxy-benzhydryl)-fluoren-9-ol 
• 102948-95-8 9,10-diphenyl-9,10-dihydrophenanthrene-9,10-diol 
• 58308-07-9 cis-9,10-diphenyldihydrophenanthrene-9,10-diol 
• 58131-87-6 trans-9,10-dihydro-9,10-diphenyl-9,10-phenanthrenediol 
• 64-19-7 acetic acid 
• 75-36-5 acetyl chloride 
• 71-43-2 benzene 
• 486-25-9 9-fluorenone 
• 13828-76-7 diphenylchloromethyllithium 
• 7664-93-9 sulfuric acid 
• 60-29-7 diethyl ether 
• 2051-90-3 Dichlorodiphenylmethane 

Downstream Products

• 103329-24-4 3-tert-butyl-9,10-diphenyl-phenanthrene 
• 602-15-3 9,10-diphenylphenanthrene 
• 116151-48-5 1,9,10-triphenyl-phenanthrene 
• 860596-13-0 2'-benzhydryl-biphenyl-2-carboxylic acid 
• 62895-56-1 9,10,10-Triphenyl-9,10-dihydro-[9]phenanthrol 
• 120335-23-1 9-Benzyl-10,10-diphenyl-9,10-dihydro-[9]phenanthrol 
• 20302-14-1 9,9-diphenylfluorene 

Relevant academic research and scientific papers

Photochemical Pinacol Rearrangements of Unsymmetrical Diols

The photochemical pinacol reaction of a series of nonsymmetrical 9-fluorenyl-substituted vic-diols was investigated and compared with their acid-catalyzed thermal reaction. Unlike the thermal reaction, the radiation-induced processes involve only fluorenyl cations, as is reflected in differences of product distribution between the two reactions. From the product studies, substituent migratory aptitudes are reversed in the photochemical process, suggesting that kinetic control takes place under neutral conditions unlike the acid-catalyzed thermal reactions. The presence of fluorenyl cation intermediates and their lifetimes were established by laser flash spectroscopy studies.

13C NMR Study of Substituted 10,10-Diphenyl-9-Phenanthrones. Structure Determination and Signal Assignment using 2D NMR Techniques

The 13C NMR spectrum of 10,10-diphenyl-9-phenanthrone was assigned unambiguously using 2D 13C,1H shift correlated NMR spectra, optimized either for one-bond or long-range 13C-1H couplings, and 2D RELAY NMR spectra.This information allowed the structures of number of substituted 10,10-diphenyl-9-phenanthrones to be decuded from their 13C NMR spectra.The results provide an insight into the mechanism of the reaction of 9-fluorenone with chlorodiphenylmethyllithium.KEY WORDS - 13C 2D long-range 13C,1H shift correlation 2D RELAY Substituted 9-phenanthrones

The Use of Electron Spin Resonance and ENDOR and TRIPLE Resonance Methods for Structural Elucidation

A series of substituted 10,10-diphenylphenanthren-9(10H)-ones has been reduced in ethereal solvents, and the resulting paramagnetic solutions have been examined by multiple resonance techniques.The values and relative signs of the various coupling constants proved useful and unambiguous in ascertaining the position of ring substitution in the starting material.These methods have therefore proved to be an alternative, if rather specialized means to determine which of several isomeric compounds is present.

Synthesis and Photopinacol Rearrangement of 1a,9a-Dihydro-1a,9b-diphenylphenanthrooxirene

The synthesis of the title compound is described.Pinacol reduction of 2,2'-dibenzoylbiphenyl followed by dehydration of the trans-diol, so formed, with dimethylformamide dimethyl acetal yielded 55percent of the oxirane.Irradiation of the oxide in methylen