期刊
JOURNAL OF ORGANIC CHEMISTRY
卷 69, 期 5, 页码 1524-1530出版社
AMER CHEMICAL SOC
DOI: 10.1021/jo035598i
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The successful isolation of stable (and soluble) hexa- and tetratrityl cations based on hexaphenyl-benzene and tetraphenylmethane scaffold has been accomplished by using readily available starting materials. These robust polytrityl cations can be isolated in crystalline form and stored indefinitely at 0 degreesC. Their structures have been established by H-1/C-13 NMR spectroscopy and by UV-vis spectroscopy. The structures of these polytrityl cations were further confirmed by quantitative transformations to the reduced (poly)triphenylmethyl derivatives by hydride transfer from triethylsilane, cycloheptatriene, or a borane-dimethyl sulfide complex.
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