ZfN: Search Results

1	Author	AbdelKader Fathy, El-Sayed Amer, Mohamed Afsah, MohamedAbbas Tawfik El-Zimaity, Metwally	Requires cookie*
	Title	Synthesis of Hexahydro-bisfbenzo-dipyrazolones, benzo-diazepinone] and Dithiopyrimidoquinazolinetetrone
	Abstract	A new series of hexahydro-bis-benzodipyrazolones (2a-e) were obtained by the inter-action of 1 with hydrazines. These pyrazolones underwent coupling reaction with different diazonium salts to give 7a-g. Compound 1 when treated with acid hydrazides gave 3 a, b, and when subjected to Japp-Klingemann reaction in alkaline medium gave 6a-e. The hexahydro-bis-benzodiazepine (8), and dithiopyrimidoquinazolinetetrone (10) were obtained by the interaction of 1 with o-phenylenediamine and thiourea respectively.
	Reference	(Z. Naturforsch. 34b, 95—98 [1979]; received June 5 1978)
	Published	1979
	Keywords	Pyrazolones, Diazonium Salts, Synthesis
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	TEI-XML for	default:Reihe_B/34/ZNB-1979-34b-0095.pdf
	Identifier	ZNB-1979-34b-0095
	Volume	34

2	Author	Stefan Sawusch, Uwe Schilde	Requires cookie*
	Title	Ligandenaustauschreaktionen von NiCl2(PPh3)2 mit 0(S)~N~S-Liganden Ligand Exchange Reactions of NiCl2(PPh3)2 with 0 (S )^ N ^ S Ligands
	Abstract	Ligand exchange reactions of NiCl2(PPh3)2 with O (S)'"'N ^ S ligands were studied. Oxi dation products of O^N^S ligands have been characterized and their structures deter mined: 3-methyl-4H-benzo[b] [ 1,4]thiazin-2-yl-phenylmethanone / 2-methyl-benzo[d] [ 1,3]thi-azole (mixed crystal); [2-iminoisopropyl-thiophenolato(2-)](triphenyl-phosphane)-nickel(II); 1 -phenyl-3-methyl-4-(benzoyl-thiobenzoylhydrazono)-pyrazol-5-thione; [ 1 -phenyl-3-methyl-4-(benzoyl-thiobenzoylhydrazono)-pyrazol-5-thionato](triphenyl-phosphane)-nickel(II).
	Reference	Z. Naturforsch. 54b, 881—886 (1999); eingegangen am 9. März 1999
	Published	1999
	Keywords	Nickel Chelates, Ligand Exchange Reactions, Benzothiazine, Benzothiazole, Pyrazolone
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	TEI-XML for	default:Reihe_B/54/ZNB-1999-54b-0881.pdf
	Identifier	ZNB-1999-54b-0881
	Volume	54