Imidazolin-2-iminato-Derivate der Thiokohlensäure [1] / Imidazolin-2-iminato Derivatives of Thiourea [1]

Autor:	Riad Fawzi, Norbert Kuhn, Cäcilia Maichle-Mößmer, Jörg Wiethoff, Manfred Steimann
Rok vydání:	1997
Předmět:	chemistry.chemical_compound Thiourea Chemistry General Chemistry Medicinal chemistry
Zdroj:	Zeitschrift für Naturforschung B. 52:1055-1061
ISSN:	1865-7117 0932-0776
DOI:	10.1515/znb-1997-0907
Popis:	From 2-trimethylsilylimino-1,3-dimethylimidazoline (6, ImN-SiMe3) and CSCl2 the imidochlorothionic acid [ImN=C(S)Cl (7) is obtained; 7 gives with AlCl3 the cationic isothiocyanate [ImN=C=S]AlCl4 (9). The corresponding imidothiourea ImN=C(S)NEt2 (12) is formed reacting Et2NC(S)Cl (10) and ImNLi (11). The reaction of ImN=C(S)SSiMe3 (13) with iodine gives the dicationic species [{ImN=C(SSiMe3)S}2](I3)2 (14) which is transformed into the protonated imidothiourea [ImN=C(S)N(H)Im]I (16) by polar solvents. From 16 the imidothiourea (ImN)2CS (8) is obtained as a polymeric solid. The strong π-electron donor ability of the imido substituent ImN is revealed by the X-ray structure analyses of 12 and 16.
Databáze:	OpenAIRE
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