ZfN: Search Results

1	Author	M. Anfred Fild, PeterG. Jones, Karsten Ruhnau, Carsten Thöne	Requires cookie*
	Title	Darstellung und Strukturen von 2,2,4,4-Tctrafluor-l,3-diphosphctancn und -1,3-diphosphetan-disulfiden Synthesis and Structures of 2,2,4,4-Tetrafluoro-l,3-diphosphetanes and of -1,3-diphosphetane Disulfides
	Abstract	A simple route to 1,3-diphosphetanes [RPCF2]2 [R = Ph, Me, Bu'] is described. The phos-phaalkene intermediates RP=CF2, as well as the corresponding disulfides [R (S)PC F2]2 have been characterized. The crystal structures of [PhPCF2]2, and of the sulfides [Ph(S)PCF2]2 and [Bu'(S)PCF2]2 are reported.
	Reference	Z. Naturforsch. 49b, 1361—1367 (1994); eingegangen am 6. Juni 1994
	Published	1994
	Keywords	Phosphaalkenes, 1, 3-Diphosphetanes, 1, 3-Diphosphetane Disulfides, NM R Spectra, Crystal Structure
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	TEI-XML for	default:Reihe_B/49/ZNB-1994-49b-1361.pdf
	Identifier	ZNB-1994-49b-1361
	Volume	49

2	Author	HansG. Ünter Aurich, Abdellatif Chair	Requires cookie*
	Title	.3-DipoIare Cycloaddition von Dinitronen - Bildung tricyclischer Dimerer 1 .3 -Dipolar Cycloaddition of Dinitrones -Formation of Tricyclic Dimers
	Abstract	Various dialdehydes (1 -5) were formed by addition of dithiols to acrolein. Reaction of these dialdehydes with N-alkylhydroxylamines afforded dinitrones the two nitrone groups of which were joined by an alkylidene chain containing two sulfur atoms (6 a ,b -1 0 a ,b). Cycloaddition of these dinitrones with dimethyl acetylenedicarboxylate proceeded in the usual way giving bis(4-isoxazolines) (lla -1 5 a) .
	Reference	Z. Naturforsch. 49b, 963—9 (1994); eingegangen am 16. März 1994
	Published	1994
	Keywords	Dialdehydes, Dinitrones, 1, 3-Dipolar Cycloaddition, Tricyclic Compounds, Metal C om plexes
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	TEI-XML for	default:Reihe_B/49/ZNB-1994-49b-0963.pdf
	Identifier	ZNB-1994-49b-0963
	Volume	49

3	Author	Akinori Shiotani	Requires cookie*
	Title	Die Pd-katalysierte oxidative Kupplungsreaktion von Methylbenzoesäuremethylester The Pd-Catalyzed Oxidative Coupling Reaction of Methyl Methylbenzoates
	Abstract	The Pd-catalyzed oxidative coupling reaction of methyl o-toluate gives, in the presence of a Pd/l,10-phenanthroline(phen)/Cu catalyst, exclusively, the para-linked biphenyldicarboxy-lates 1, 2, and 3. On the other hand, the meta-linked biphenyldicarboxylates 4 and 5, were predominantly formed in a catalyst system of Pd/2,4-pentanedione(acacH)/Cu, and under similar conditions 6 and 7 were also obtained from the coupling reaction of methyl m-toluate and methyl p-toluate, respectively. A reaction scheme has been proposed.
	Reference	Z. Naturforsch. 49b, 1731—1736 (1994); eingegangen am 21. April 1994
	Published	1994
	Keywords	Coupling Reaction, Steric Influence, Palladium, 1, 10-Phenanthroline, 2, 4-Pentanedione
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	TEI-XML for	default:Reihe_B/49/ZNB-1994-49b-1731.pdf
	Identifier	ZNB-1994-49b-1731
	Volume	49

4	Author	Michael Farkens, ThomasG. Meyer, Ion Neda, R.Alf Sonnenburg, Christian Müller, AxelK. Fischer, PeterG. Jones, Reinhard Schmutzler	Requires cookie*
	Title	Zur Chemie der l,3,5-Triaza-2-phosphinan-4,6-dione. Teil VI*. Darstellung von l,3>5-Triaza-2 A3
	Abstract	, l,3,5-Triaza-2 A4-und 1,3,5-T riaza-2 A5-phosphinan-4,6-dionen Chemistry o f the l,3,5-Triaza-2-phosphinane-4,6-diones. Part VI. Synthesis o f l,3,5-Triaza-2^3-, 1,3,5-Triaza-2A4-and l,3,5-Triaza-225-phosphinane-4,6-diones The reactions o f 1,3,5-trimethylbiuret with dicyclohexylam inodichlorophosphine and with pyrrolidinodichlorophosphine furnished the triazaphosphinane-diones 1 and 2. Oxidation
	Reference	Z. Naturforsch. 49b, 145—164 (1994); eingegangen am 29. Juli 1993
	Published	1994
	Keywords	1, 3, 5-Triorgano-Substituted l, 3, 5-Triaza-2-phosphinan-4, 6-diones, Oxidation Reactions, N M R Spectra, M ass Spectra, X -R ay
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	TEI-XML for	default:Reihe_B/49/ZNB-1994-49b-0145.pdf
	Identifier	ZNB-1994-49b-0145
	Volume	49