Halides, aryl, and related compounds

ligand 141 (20mol%) CU2O (5mol%), CS2CO3 (2.1 equiv) 

It has been shown that l-(4-nitrophenyl)azoles (pyrazole, H and 2//-indazole amongst them) are obtained in good yields by direct arylation of the corresponding azole with p-fluoronitrobenzene using PTC without solvent 93SC1947 . A fascinating series of new compounds, the hexa(pyrazol-l-yl)benzenes, can be easily prepared from hexafluorobenzene and pyrazole anions 93H(35)4I5 . 

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Aromatic substitution, a quantitative treatment of directive effects in, 1, 35 Aromatic substitution reactions, hydrogen isotope effects in, 2, 163 Aromatic systems, planar and non-planar, 1, 203 Aryl halides and related compounds, photochemistry of, 20, 191 Arynes, mechanisms of formation and reactions at high temperatures, 6, I A-Se2 reactions, developments in the study of, 6,63... 

Photochemistry, of aryl halides and related compounds, 20, 191 Photochemistry, of carbonium ions, 9, 129... 

Partitioning of carbocations between addition of nucleophiles and deprotonation, 35, 67 Perchloro-organic chemistry structure, spectroscopy and reaction pathways, 25, 267 Permutations isomerization of pentavalent phosphorus compounds, 9, 25 Phase-transfer catalysis by quaternary ammonium salts, 15, 267 Phenylnitrenes, Kinetics and spectroscopy of substituted, 36, 255 Phosphate esters, mechanism and catalysis of nucleophilic substitution in, 25, 99 Phosphorus compounds, pentavalent, turnstile rearrangement and pseudoration in permutational isomerization, 9, 25 Photochemistry, of aryl halides and related compounds, 20, 191 Photochemistry, of carbonium ions, 9, 129... 

R. S. Davidson,. W. Goodwin and G. Kemp. Advances in Physical Organic Chemistry, vol. 20, Academic Press (1984), p. 191. The photochemistry of aryl halides and related compounds is reviewed, including substitution and cydization reactions. 

The reductive photodehalogenation of aryl halides has been actively investigated in recent years. Special attention has been given to (poly)halobenzenes and (poly)halo-biphenyls. The reactions are of interest in view of their mechanisms, and because of the importance of chlorinated aromatic hydrocarbons as environmental pollutants and the possibility of their photoinduced degradation. The photochemistry of aryl halides and related compounds in general14 and the photochemistry of polyhaloarenes in particular18 have been reviewed. 

Reduction of Vinyl Halides to Alkenes, and of Aryl Halides and Related Compounds to Arenes... 

Aryl halides and related compounds Imidazoles with a free NH group... 

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