caa a22 4500 469056649 CHVBK 20180323132845.0 cr unu---uuuuu 170328e19920601xx s 000 0 eng 10.1163/156856792X00100 doi (NATIONALLICENCE)springer-10.1163/156856792X00100 1-oxo-2,2,6,6-tetramethyl-4-chloropiperidinium perchlorate. A new facile oxidant for phenol coupling [Elektronische Daten] [H. Guo, Y. Liu, Z. Liu, C. Li] The title compound (1) oxidizes 2,6-di-tert-butylphenol (2), 2,6-di-tert-butyl-4-methylphenol (3), 2,6-di-tert-butyl-4-(dipnenylmethyl)phenol (4), and p-naphthol (5), to quinones in good yield under mild conditions in acetonitrile. For unsubstituted phenols the reaction takes place in two ways, phenol (6) is oxidized to quinhydrone (7), while the oxidation products of the phenols, α-naphthol, catechol and 2,4-dihydroxyl-naphthol were only polymers. Springer, 1992 Guo H. Department of Chemistry, Lanzhou University, 730000, Lanzhou, Gansu, China aut Liu Y. Department of Chemistry, Lanzhou University, 730000, Lanzhou, Gansu, China aut Liu Z. Department of Chemistry, Lanzhou University, 730000, Lanzhou, Gansu, China aut Li C. Department of Chemistry, Lanzhou University, 730000, Lanzhou, Gansu, China aut Research on Chemical Intermediates Springer Netherlands 17/2(1992-06-01), 137-143 0922-6168 17:2<137 1992 17 11164 https://doi.org/10.1163/156856792X00100 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1163/156856792X00100 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Guo H. Department of Chemistry, Lanzhou University, 730000, Lanzhou, Gansu, China aut NATIONALLICENCE 700 1- Liu Y. Department of Chemistry, Lanzhou University, 730000, Lanzhou, Gansu, China aut NATIONALLICENCE 700 1- Liu Z. Department of Chemistry, Lanzhou University, 730000, Lanzhou, Gansu, China aut NATIONALLICENCE 700 1- Li C. Department of Chemistry, Lanzhou University, 730000, Lanzhou, Gansu, China aut NATIONALLICENCE 773 0- Research on Chemical Intermediates Springer Netherlands 17/2(1992-06-01), 137-143 0922-6168 17:2<137 1992 17 11164 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer