The Question of Orientation in the Introduction of the Triphenylmethyl Radical into Solvent Substrates of Toluene, Chlorobenzene and Methyl Benzoate. The Tritylation of Aromatic Rings Containing Deactivating Groups
The Question of Orientation in the Introduction of the Triphenylmethyl Radical into Solvent Substrates of Toluene, Chlorobenzene and Methyl Benzoate. The Tritylation of Aromatic Rings Containing Deactivating Groups
Photolysis of Tetraarylmethanes and 3-(Triarylmethyl)pyridines
作者:Min Shi、Yoshiki Okamoto、Setsuo Takamuku
DOI:10.1246/bcsj.63.2731
日期:1990.9
Upon UV irradiation in benzene–methanol (1:2) tetraarylmethanes or 3-(triarylmethyl)pyridines underwent an α,α-elimination of two aryl groups to give biaryls or 3-arylpyridine, and two corresponding carbene intermediates. The latters afforded methyl ethers by the O–H insertion to methanol.
Synthesis of tetraarylmethanes via a Friedel-Crafts cyclization/desulfurization strategy
作者:Paul J. Griffin、Matthew A. Fava、St. John T. Whittaker、Kristopher J. Kolonko、Arthur J. Catino
DOI:10.1016/j.tetlet.2018.09.056
日期:2018.11
Despite their importance, there are only a few methods available for their preparation. Herein, we report a simple procedure for the preparation of tetraarylmethanes that involves a bismuth-catalyzed Friedel-Crafts cyclization followed by a desulfurization reaction mediated by Raney nickel.
SHI, MIN;OKAMOTO, YOSHIKI;TAKAMUKU, SETSUO, BULL. CHEM. SOC. JAP., 63,(1990) N, C. 2731-2733
作者:SHI, MIN、OKAMOTO, YOSHIKI、TAKAMUKU, SETSUO
DOI:——
日期:——
The Question of Orientation in the Introduction of the Triphenylmethyl Radical into Solvent Substrates of Toluene, Chlorobenzene and Methyl Benzoate. The Tritylation of Aromatic Rings Containing Deactivating Groups