1982
DOI: 10.1002/prac.19823240510
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Free radicals of phenothiazine and related compounds. IV. Phenothiazinyl‐ and Diphenothiazine‐ Copper Complexes as intermediates and products in the interaction of phenothiazines with copper(II) halides

Abstract: Freie Radikale des Phenothiazins und ähnliche Verbindungen. IV. Phenothiazinyl‐ und Diphenothiazin‐Kupferkomplexe als Zwischen‐ und Endprodukte in der Reaktion von Phenothiazin mit Kupfer (II)‐halogeniden Darstellung und Eigenschaften einiger Komplexverbindungen des 10‐Phenothiazinylradikals und deren Dimerisierungsprodukte mit Cu(I)‐ und Cu(II)‐ionen werden beschrieben. Ein Mechanismus für die selektive Chlorierung von Phenothiazinen in Position 1 mittels CuCl2 wird diskutiert. Die Möglichkeit ähnlicher Bromi… Show more

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Cited by 5 publications
(2 citation statements)
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“…To the best of our knowledge, compounds containing a dithia-diazo perylene core as in structure 4 have not been reported in the literature before. Interestingly, three unusual dimers of phenothiazine with N-N-, C 3 -N-, and C 1 -N- connectivity have been reported by Diudea and Silberg formed upon mild oxidation of phenothiazine with copper(II) chloride, i.e., under very mild oxidizing conditions and obviously in the coordination sphere of a transition metal. These peculiar dimerizations can be obviously accounted for by the ease of oxidation and the relative stability of the phenothiazinyl radical cation.…”
Section: Resultsmentioning
confidence: 88%
“…To the best of our knowledge, compounds containing a dithia-diazo perylene core as in structure 4 have not been reported in the literature before. Interestingly, three unusual dimers of phenothiazine with N-N-, C 3 -N-, and C 1 -N- connectivity have been reported by Diudea and Silberg formed upon mild oxidation of phenothiazine with copper(II) chloride, i.e., under very mild oxidizing conditions and obviously in the coordination sphere of a transition metal. These peculiar dimerizations can be obviously accounted for by the ease of oxidation and the relative stability of the phenothiazinyl radical cation.…”
Section: Resultsmentioning
confidence: 88%
“…(loge) 225 sh (4. 16), 253 (4.86), 320nm (4.06), (EI) m/z 199 (M+') (loo%), 167 (30), 154 (7), 139 (4), 127 (31, 6 6.99 (5H, m, NH, ArH), 6.83 (2H, m, 1, 9-H), 6.56 (2H, m, 3, 7-H).…”
mentioning
confidence: 99%