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AMBIENTUM BIOETHICA BIOLOGIA CHEMIA DIGITALIA DRAMATICA EDUCATIO ARTIS GYMNAST. ENGINEERING EPHEMERIDES EUROPAEA GEOGRAPHIA GEOLOGIA HISTORIA HISTORIA ARTIUM INFORMATICA IURISPRUDENTIA MATHEMATICA MUSICA NEGOTIA OECONOMICA PHILOLOGIA PHILOSOPHIA PHYSICA POLITICA PSYCHOLOGIA-PAEDAGOGIA SOCIOLOGIA THEOLOGIA CATHOLICA THEOLOGIA CATHOLICA LATIN THEOLOGIA GR.-CATH. VARAD THEOLOGIA ORTHODOXA THEOLOGIA REF. TRANSYLVAN
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The STUDIA UNIVERSITATIS BABEŞ-BOLYAI issue article summary The summary of the selected article appears at the bottom of the page. In order to get back to the contents of the issue this article belongs to you have to access the link from the title. In order to see all the articles of the archive which have as author/co-author one of the authors mentioned below, you have to access the link from the author's name. |
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STUDIA CHEMIA - Issue no. 4 / 2011 | |||||||
Article: |
SYNTHESIS, CHARACTERIZATION AND COMPLEXATION STUDY OF NEW 4-(DIPHENYLPHOSPHINO)-PHENOTHIAZINES. Authors: CASTELIA CRISTEA, LUMINIŢA SILAGHI-DUMITRESCU. |
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Abstract: The synthesis of new 4-(diphenylphosphino)-phenothiazine derivatives was achieved by a regioselective lithiation of the thio-aryl structural unit of the phenothiazine precursor, followed by in situ reaction of the intermediate with chloro-diphenylphosphine. Symmetrical 4,6-bis(diphenylphosphino)-phenothiazine was obtained by similar functionalization of the isolated 4-(diphenylphosphino)-phenothiazine. These air stable aryl-phosphines were purified by column chromatography and characterized by MS, FT-IR, 1H-, 13C- and 31P-NMR spectroscopy. Coordination of 10-alkyl-4-(diphenyl-phosphino)-phenothiazines to Pd(II) was confirmed by means of 31P-NMR spectroscopy which indicated a strong deshielding effect upon P atoms. Keywords: Phenothiazine, Heteroaryl-diphenylphosphine, Pd(II) complex, 31P-NMR |
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