Universität zu Köln

Gomez, Juan Daniel Castillo, Balcazar, Emilio, Hagenbach, Adelheid, Noufele, Christelle Njiki and Abram, Ulrich (2016). Benzoylamido-substituted thiazoles and thiazolidines and their rhenium complexes. Polyhedron, 117. S. 293 - 300. OXFORD: PERGAMON-ELSEVIER SCIENCE LTD. ISSN 0277-5387

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Abstract

Cyclization reactions dominated attempts to synthesize N-alkyl- or N-dialkyl-N'-benzoylthiourea ligands having an alkyne group at the amine residue. While exclusively thiazolidine or thiazole derivatives could be isolated during reactions of benzoyl chloride, (NH4)SCN and N-methypropargylamine, an open-chain benzoylthiourea was obtained with unsubstituted propargylamin. But also the latter product isomerized under the influence of a strong base and heat to the corresponding cyclic derivatives. The resulting heterocycles, a 5-methylenthiazolidine (HL4) and a 5-methylthiazole (HL5), react with (NBu4)[ReOCl4]/PPh3 mixtures or [ReOCl3(PPh3)(2)] under formation of the neutral Re(III) complex [ReCl2(PPh3)(2)(L4)] and the cationic Re(V) compound [ReO2(PPh3)(2)(HL5)], respectively. The products have been isolated in crystalline form and studied spectroscopically and by X-ray diffraction. (C) 2016 Elsevier Ltd. All rights reserved.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Gomez, Juan Daniel Castillo UNSPECIFIED UNSPECIFIED UNSPECIFIED Balcazar, Emilio UNSPECIFIED UNSPECIFIED UNSPECIFIED Hagenbach, Adelheid UNSPECIFIED UNSPECIFIED UNSPECIFIED Noufele, Christelle Njiki UNSPECIFIED UNSPECIFIED UNSPECIFIED Abram, Ulrich UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-258368
DOI:	10.1016/j.poly.2016.06.004
Journal or Publication Title:	Polyhedron
Volume:	117
Page Range:	S. 293 - 300
Date:	2016
Publisher:	PERGAMON-ELSEVIER SCIENCE LTD
Place of Publication:	OXFORD
ISSN:	0277-5387
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language TECHNETIUM COMPLEXES; THIOUREA DERIVATIVES; ACYLTHIOUREAS; COORDINATION; CHEMISTRY; LIGANDS; DENSITY Multiple languages Chemistry, Inorganic & Nuclear; Crystallography Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/25836