Benzylic Phosphates in Friedel-Crafts Reactions with Activated and Unactivated Arenes: Access to Polyarylated Alkanes
Easily reachable electron-poor/rich primary and secondary benzylic phosphates are suitably used as substrates for Friedel-Crafts benzylation reactions with only 1.2 equiv activated/deactivated arenes (no additional solvent) to access structurally and electronically diverse polyarylated alkanes with excellent yields and selectivities at room temperature. Specifically, diversely substituted di/triarylmethanes are generated within 2-30 min using this approach. A wide number of electron-poor polyarylated alkanes are easily accomplished through this route by just tuning the phosphates.
Pallikonda, Gangaram,Chakravarty, Manab
p. 2135 - 2142
(2016/03/15)
Direct alkylation of aromatics using alcohols in the presence of NaHSO 4/SiO2
Simple and efficient procedure for alkylation of aromatics from alcohols in the presence of NaHSO4/SiO2 was developed. Various triaryl methanes were obtained in good yields in short reaction time. For instance the reaction of mesitylene with benzhydrol in the presence of NaHSO4/SiO2 gave the corresponding triaryl methane in a quantitative yield. NaHSO4/SiO2 was regenerated by simple treatment and could be recycled eight times without activity loss.
DDT, a potentiaal source of environmental tris(4-chlorophenyl)methane and tris(4-chlorophenyl) methanol
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Buser
p. 2133 - 2139
(2007/10/03)
The Reduction of Fluorine-containing Triarylmethanols by Formic Acid
Triarylmethanols containing one or more fluorine substituents in the para-positions are converted by 90 percent formic acid into a mixture of the fluorine-containing triarylmethane, and a second component in which one fluorine has been replaced by a hydro
Andrews, Adrian F.,Mackie, Raymond K.,Walton, John C.
p. 96 - 102
(2007/10/02)
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