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1	Author	Gabriele Knörzer, Herm Ann Seyffer, W. Alter, Siebert	Requires cookie*
	Title	Synthese von Diboraheterocyclen mit einer BC3B-Gruppierung Synthesis of Diboraheterocycles with a BC3B Unit
	Reference	Z. Naturforsch. 45b, 1136—1138 (1990); eingegangen am 31. Januar 1990
	Published	1990
	Keywords	1, 3-Diborylpropanes, 1, 2-Diborolane, 1, 2, 6-Thiadiborinane, 1, 2, 6-Azadiborinane
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	TEI-XML for	default:Reihe_B/45/ZNB-1990-45b-1136.pdf
	Identifier	ZNB-1990-45b-1136
	Volume	45

2	Author	Peter Kölle, Heinrich Nöth, RobertT. Paine, Wilfried Rattay	Requires cookie*
	Title	Beiträge zur Chemie des Bors, 195 [1] Synthese, Struktur und Reaktionen eines l,3,2,4-Aza-A 3 -phosphadiboretidin-Derivats Contributions to the Chemistry of Boron, 195 [1] Synthesis, Structure and Reaction of a l,3,2,4-Aza-A 3 -phosphadiboretidine Derivative
	Reference	Z. Naturforsch. 43b, 1439—1446 (1988); eingegangen am 27. Juni 1988
	Published	1988
	Keywords	1, 3, 2, 4-Azaphosphadiboretidine, 1, 3, 2, 4-Azaphosphoniadiboretidinium-iodid, 1, 3, 2, 4-Selenaazadiboretidine
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	TEI-XML for	default:Reihe_B/43/ZNB-1988-43b-1439.pdf
	Identifier	ZNB-1988-43b-1439
	Volume	43

3	Author	Volker Bätzel, Roland Boese	Requires cookie*
	Title	Synthesis and Structure of 1,2,3-Thiadiazol-and 1,2,3-Selenadiazol-Pentacarbonyl-Complexes of the Elements Chromium and Tungsten
	Abstract	From the reactions of (THF)M(CO)5 (M = Cr, W) with 4-phenyl-l,2,3-thiadiazol, 4-methyl-5-carboxylic acid-l,2,3-thiadiazol, 4-methyl-5-carboxylic acid ethyl ester-1,2,3-thiadiazol and 4-methyl-l,2,3-selenadiazol, pentacarbonyl-complexes are obtained as air stable compounds. IR spectra of products of similar reactions with M = Mo provide some evidence of the formation of analogous complexes. The thiadiazol complexes are also accessible directly, by photochemical displacement of carbonmonoxid in THF from the parent carbonyl. The X-ray structures of pentacarbonyl-(4-phenyl-l,2,3-thiadiazol)-tungsten and pentacarbonyl-(4-methyl-l,2,3-selenadiazol)-chromium show the coordina-tion of the ligand to the pentacarbonyl-metal-fragment via the nitrogen in position 2.
	Reference	Z. Naturforsch. 36b, 172—179 (1981); eingegangen am 15. Oktober/21. November 1980
	Published	1981
	Keywords	1, 2, 3-Thiadiazoles, 1, 2, 3-Selenadiazoles, Pentacarbonyl Complexes
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	TEI-XML for	default:Reihe_B/36/ZNB-1981-36b-0172.pdf
	Identifier	ZNB-1981-36b-0172
	Volume	36

4	Author	Mathias Noltemeyer, GeorgeM. Sheldrick, Carl Habben, Anton Meiler	Requires cookie*
	Title	Reaktionen von Mehrfachbindungssystemen mit dem 1.2.4-Trithia-3.5-diborolan-Ring -Eine strukturelle Richtigstellung Reactions of Multiple-Bond-Systems with the l,2,4-Trithia-3,5-diborolane Ring - A Structural Correction-Dithia-3-bora-4-azacyclopentanones-(5) and -thiones-(5), Crystal Structure
	Reference	Z. Naturforsch. 38b, 1182—1191 (1983); eingegangen am 6. Juli 1983
	Published	1983
	Keywords	1, 2, 3-Dithiaboroles, 1, 3, 2-Dithiaboroles, l, 2
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	TEI-XML for	default:Reihe_B/38/ZNB-1983-38b-1182.pdf
	Identifier	ZNB-1983-38b-1182
	Volume	38

5	Author	Rolf Minkwitz, Detlef Konikowski	Requires cookie*
	Title	Über verbesserte Darstellungs methoden für CF3OCH3 Improved Methods to Prepare CF3 O C H 3
	Abstract	The reaction of CH 3I with CF3OCl at 203 K yields CF3O C H 3. The preparation of the ether by methylation of CsOCF3 with (CH3)2S 0 4 is also described.
	Reference	Z. Naturforsch. 51b, 147—148 (1996); eingegangen am 21. Juni 1995
	Published	1996
	Keywords	1, 1, 1-Trifluoromethyl-methyl-ether, Preparation, N M R Spectra
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	TEI-XML for	default:Reihe_B/51/ZNB-1996-51b-0147_n.pdf
	Identifier	ZNB-1996-51b-0147_n
	Volume	51

6	Author	Jochen Eilermann, HelmutA. Lindner	Requires cookie*
	Title	Komplexchemie polyfunktioneller Liganden, 52 [1] Hydrido-und Deuterido-mangan(I)-carbonyl
	Abstract	Komplexe des 1.1.1-Tris (diphenylphosphinomeihy 1) e thans Complex Chemistry of Polyfiinctional Ligands, 52 [1] Hydrido-and Deuterido-manganese(I)-carbonyl Complexes of 1,1,1 -Tris(diphenylphosphinomethyl)ethane
	Reference	Z. Naturforsch. 34b, 799—804 (1979); eingegangen am 26. März 1979
	Published	1979
	Keywords	Deuterido-manganese(I)-carbonyl Complexes, 1, 1, 1 -Tris(diphenylphosphinomethyl)ethane, Vibrational Spectra, 31 P NMR, NMR
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	TEI-XML for	default:Reihe_B/34/ZNB-1979-34b-0799.pdf
	Identifier	ZNB-1979-34b-0799
	Volume	34

7	Author	Claudia Bäk, Klaus Praefcke	Requires cookie*
	Title	und dessen Cycloreversion Organic Sulfur Compounds, XLVII [1] Dimerization of Monothiobenzil to a 1,3-Dithietane and its Cycloreversion
	Abstract	The thermal dimerization of monothiobenzil (lc) to a 1,3-dithietane (2c) and the photochemical cycloreversion of this heterocycle to 1 c is described.
	Reference	Z. Naturforsch. 35b, 372—375 (1980); eingegangen am 26. November 1979
	Published	1980
	Keywords	Heterocycles, Organic Sulfur Compounds, a-Oxothiones, 1, 3-Dithietans, 1, 3-Oxathiols, Photoreactions
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	TEI-XML for	default:Reihe_B/35/ZNB-1980-35b-0372.pdf
	Identifier	ZNB-1980-35b-0372
	Volume	35

8	Author	Börries Kübel, Werner Knauf, Anna Waltersdorfer	Requires cookie*
	Title	Synthese von 1.2.4-Oxadiazolyl-und 1.2.4-Thiadiazolylvinylphosphaten und deren biologische Wirkung Synthesis of 1,2,4-Oxadiazolyl-and 1,2,4-Thiadiazolyl vinylphosphates and their Biological Activity
	Reference	Z. Naturforsch. 37b, 896—901 (1982); eingegangen am 21. Dezember 1981/29. Januar 1982
	Published	1982
	Keywords	1, 2, 4-Oxadiazole, 1, 2, 4-Tliiadiazole, Vinylphosphates, Insecticide, Acaricide
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	TEI-XML for	default:Reihe_B/37/ZNB-1982-37b-0896.pdf
	Identifier	ZNB-1982-37b-0896
	Volume	37

9	Author	Xian-Ming Pan, Eugenie Bastian, Clemens Von Sonntag	Requires cookie*
	Title	The Reactions of Hydroxyl Radicals with 1,4-and 1,3-Cyclohexadiene in Aqueous Solution A Pulse Radiolysis and Product Study
	Abstract	The reactions of radiolytically generated hydroxyl radicals and H atoms with 1,4-and 1,3-cyclohexadiene were studied by pulse radiolysis and product analysis. Hydrogen abstraction from these substrates by the OH radical yields the cyclohexadienyl radical (f (310 nm) = 4400 dm 1 mol" 1 cm"' from the reaction of the H atom with benzene) with an efficiency of 50% (0.29 ,«moI /"') in the case of 1,4-cyclohexadiene and 25% (0.15,«mol /"') in the case of 1,3-cyclohexadiene as determined by pulse radiolysis. The remaining OH radicals add to the olefin. In 1,4-cyclohexa-diene the yield of the resulting adduct radicals has been determined in a steady-state "'Co-y-irradiation experiment by reducing it with added 1,4-dithiothreitol (DTT) to 4-hydroxycyc-lohexene. There are two sites of OH radical attack in the case of 1,3-cyclohexadiene, and only the alkyl radical is reduced quantitatively by DTT (G(3-hydroxycyclohexene) = 0.15 ,«mol J '). From material balance considerations it is concluded that the allylic radical must be formed with a G value of 0.28 «mol J~ x but largely escapes reduction by DTT (G(4-hydroxycyclohexene) = 0.03 ,«mol y 1). H atoms add preferentially to the double bonds of 1,4-and 1,3-cyclohexadiene (78% and 93%, respectively), while the O t radical (the basic form of the OH radical) undergoes mainly H-abstraction (92% and 83%. respectively). The radicals formed in these systems decay bimolecularly (2k = 2.8xl0 4 dm' mop 1 s~'). In their combination reactions the cyclohexadienyl radicals form the four possible dimers in propor-tions such that the dienyl radical moiety shows a 2:1 preference to react from its central (la) rather than from a terminal carbon atom (lb). Cyclohexadienyl radicals and the OH-and H-adduct radicals also cross-terminate by disproportionation and dimerization. Material balance has been obtained for the 1,4-cyclohexadiene system in N : 0-saturated solution (10 : mol dm 3) at a dose rate of 0.14 Gy s" 1 , the products (G values in «mol J ') being: benzene (0.085), 4-hydroxycyclohexene (0.25), cyclohexadienyl-dimers (0.144), cyclohexadienyl-OH-adduct-dimers (0.02), OH-adduct-dimers (0.02). Some of the 4-hydroxycyclohexene is formed in an H-abstraction reaction by the OH-adduct radical from 1,4-cyclohexadiene.
	Reference	Z. Naturforsch. 43b, 1201—1205 (1988); received April 13 1988
	Published	1988
	Keywords	1, 4-Cyclohexadiene, 1, 3-Cyclohexadiene Hydroxyl Radical, Cyclohexadienyl Radical, Pulse Radiolysis
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	TEI-XML for	default:Reihe_B/43/ZNB-1988-43b-1201.pdf
	Identifier	ZNB-1988-43b-1201
	Volume	43

10	Author	MichaelW Z Enke+, Karl Hensen	Requires cookie*
	Title	Thermodynamische Untersuchungen der Systeme Pyridin/CH3SiCl3 und Pyridin/Cl3C CH3 Thermodynamic Examinations of the Systems Pyridine/CH3SiCl3 and Pyridine/C13CCH3
	Abstract	The isobaric m elting and boiling diagrams for the systems: pyridine/m ethyltrichlorosilane and pyridine/1,1,1-trichloroethane are reproduced. The existence of the congruently melting addition com pound C H 3SiCl3-(P yridin)2 could be confirm ed. S om e m easu rem en ts o f the m olar volu m e o f m ixtures b etw een pyridine and m ethyltrichlorosilane and pyridine and 1,1,1-trichloroethane, respectively, are reported. For both system s the m olar excess v o l um e and for the system pyridine/m ethyltrichlorosilane the m olar excess en th alp ie have b een calculated as a function o f the m ole fractions.
	Reference	Z. Naturforsch. 48b, 1127 (1993); eingegangen am 19. März 1993
	Published	1993
	Keywords	Phase Diagram s, Pyridine, M ethyltrichlorosilane, 1, 1, 1-Trichloroethane, E xcess V alues
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	TEI-XML for	default:Reihe_B/48/ZNB-1993-48b-1127.pdf
	Identifier	ZNB-1993-48b-1127
	Volume	48

11	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

12	Author	Phosphonio-Substituted Tetrahydro-, -Diphosphinines, -Azaphosphinines, Georg Jochem, Martin Schm, HeinrichN. Öth ', Alfred Schmidpeter	Requires cookie*
	Title	Phosphonio-substituierte Tetrahydro-l,3-diphosphinine un(j Tetrahy dro-1,2,6-azad i phospli in i ne
	Abstract	The bis(triphenylphosphonio)propenide cation 1 provides two reactive CH sites in 1,3-position and can be condensed with the bis(dichlorophosphanyl)methylene triphenylphos-phorane 2 or the bis(dichlorophosphanyl)aniline 3 to form cationic six-membered rings: A tetrahydro-1,3-diphosphinine (4) with three phosphonio or phosphoranediyl substituents in 2,4,6-position and a tetrahydro-1,2,6-azadiphosphinine (5) carrying two such substituents in 3,5-position. The bromide of the latter was used for an X-ray structure analysis. The P111 ring members of the cations 4 and 5 can be oxidized in two steps by elemental sulfur to give the monothioxo and dithioxo derivatives 6. 7 and 8, 9. respectively. A crystal of the mixed chloride/bromide of 8 was used for another X-ray structure analysis.
	Reference	Z. Naturforsch. 51b, 1761—1767 (1996); eingegangen am 16. August 1996
	Published	1996
	Keywords	Dichlorophosphanyl Ylides and Amines, Cyclocondensation, Phosphorus Heterocycles, 1, 3-Diphosphinines, 1, 2, 6-Azadiphosphinines
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	TEI-XML for	default:Reihe_B/51/ZNB-1996-51b-1761.pdf
	Identifier	ZNB-1996-51b-1761
	Volume	51

13	Author	T. Deforth, M. Kaschke, H. Stock, H. Pritzkow, W. Siebert	Requires cookie*
	Title	Synthesis of C2B3 X-Heterocycles (X = C, N, P, O, S) from l,3?5-Triborapentanes
	Abstract	The hydroboration of acetylene with HBCb yields the products (CbB^CHM e (la), (Cl2BCHMe)2BCl (2a), (Cl2BCHMeBCl)2CHMe (3a), and (ClBCHMe)3 (4a). The crystal structure of 4a as well as of the pentaiodo derivative 2b were determined. A mechanism for the formation of the different hydroboration products is proposed. The 1,3,5-triborapentane 2a serves as precursor for the synthesis of derivatives of 1,3,5-triboracyclohexanes, 1,3,5-tribora-2-aza-cyclohexanes, l,3,5-tribora-2-phospha-cyclo-hexanes, and 1,3,5-tribora-2-thia-cyclohexanes. Their constitutions have been derived from spectroscopic studies. The crystal structure of the 1,3,5-tribora-2-oxa-cyclohexane derivative was also determined.
	Reference	Z. Naturforsch. 52b, 823—830 (1997); received March 4 1997
	Published	1997
	Keywords	Hydroboration, 1, 3, 5-Triborapentanes, 1, 3, 5-Triboracyclohexanes, l, 3, 5-Tribora-2-oxa-cyclo-hexanes, 1, 3, 5-Tribora-2-aza-cyclohexanes
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	TEI-XML for	default:Reihe_B/52/ZNB-1997-52b-0823.pdf
	Identifier	ZNB-1997-52b-0823
	Volume	52

14	Author	Thomas Dezember, Helmut Sitzmann	Requires cookie*
	Title	Die Fulven-Route zum Pentaisopropylcyclopentadienid The Fulvene Route to Pentaisopropylcyclopentadienide
	Reference	Z. Naturforsch. 52b, 911—918 (1997); eingegangen am 21. April 1997
	Published	1997
	Keywords	1, 2, 3, 4-Tetraisopropyl-6-dimethylamino-pentafulvene, 1, 2, 3, 4-Tetraisopropyl-6-methyl-pen-tafulvene, 1, 2, 3, 4-Tetraisopropylpentafulvene, Lithium Pentaisopropylcyclopentadienide, Ful vene Complexes
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	TEI-XML for	default:Reihe_B/52/ZNB-1997-52b-0911.pdf
	Identifier	ZNB-1997-52b-0911
	Volume	52

15	Author	SanaaM. Eldin	Requires cookie*
	Title	Reactions of Cyanothioacetamide Derivatives with 2-Hydrazinothiazol-4(5//)-one: Synthesis, Cyclization and Biological Evaluation of Several New Annelated Pyran, Thiazole, 1,2,4-Triazole and 1,2,4-Triazine Derivatives
	Abstract	The thiocarboxamidocinnamonitriles (2) reacted with 2-hydrazinothiazol-4(5//)-one (3) to afford the corresponding pyrano[2,3-d]thiazoles (6). Compounds 6 were used for the synthe sis of several new annelated pyran, thiazole, 1,2,4-triazole and 1,2,4-triazine derivatives via their reactions with chloroacetic acid, ethyl chloroformate, diethyl oxalate and acetylacetone. Structures were established based on elemental and spectral data studies. Some of the newly synthesized heterocyclic derivatives were tested for their antimicrobial activity.
	Reference	Z. Naturforsch. 54b, 1589—1597 (1999); received July 2 1999
	Published	1999
	Keywords	Thiocaboxamidocinnamonitriles, Pyrans, Thiazoles, 1, 2, 4-Triazoles, 1, 2, 4-Triazines
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	TEI-XML for	default:Reihe_B/54/ZNB-1999-54b-1589.pdf
	Identifier	ZNB-1999-54b-1589
	Volume	54

16	Author	Franz Dallacker, Thomas Böhmel, W. Ilhelm Müllners, HeinrichM. Ückter	Requires cookie*
	Title	Amin-carbamoyl-10B-boran, Darstellung und biologische Eigenschaften Amine-carbamoyl-dihydro-10B-borane, Preparation, and Biological Properties
	Abstract	The chemical section deals with the synthesis of sodiumcyano-"'B-borhydride (3) from l0B-boric acid trimethyl ester (1) via sodium-inB-borhydride (2). By converting 3 with trimethylammonium chloride, trimethylamine-cyano-10B-borane (4) is formed which, via nitrilium tetrafluoroborate 5, is transformed by water to Trimethylamine-carboxy-dihydro-luB-borane (6). Trimethylamine-ethoxycarbonyl-dihydro-l()B-borane (8b) and amine-carbamoyl-dihydro-"'B-borane (8c) can be synthesized from the imidazolid 8a. In the biological section an orientation to the toxicity and the tumor affinity of the compounds 6, 7. and 8c are described. Further the possibility is shown by achieving a maximal concentration of 10B-boron in the tumor whilst at the same time retaining as low a concentration of 1()B-Boron as possible in the surrounding tissue.
	Reference	Z. Naturforsch. 40c, 344 (1985); received March 4/April 12 1985
	Published	1985
	Keywords	1(, B-Boron, Neutron Capture Therapy, Amine-carboxy-dihydro-'°B-borane
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	TEI-XML for	default:Reihe_C/40/ZNC-1985-40c-0344.pdf
	Identifier	ZNC-1985-40c-0344
	Volume	40

17	Author	Klaus Burger, Herbert Goth, Eduard Burgis	Requires cookie*
	Title	Zum Thermolyseverhalten von 2.2-Dihydro-1.4.2-oxazaphosphol-4-enen, II [1] Eine einfache Synthese für fluorsubstituierte N-Vinylimidoylchloride Thermolysis of 2,2-Dihydro-l,4,2-oxazaphosphol-4-enes, II [1] A Simple Synthesis for Fluorine Substituted N-Vinylimidoyl Chlorides
	Abstract	3,3-Bis(chlorodifluoromethyl)-2,2,2-trimethoxy-2,2-dihydro-l,4,2-oxazaphosphol-4-enes (2) at room temperature, 3,3-bis(chlorodifluoromethyl)-2,2,2-triphenoxy-2,2-dihydro-l,4,2-oxazaphosphol-4-enes (3) at 140-145 °C undergo cycloelimination of trimethyl, and triphenyl phosphate, respectively, with formation of N-[l-chlorodifluoromethyl-2,2-di-fluoro(vinyl)]-imidoyl chlorides (4) in high yields.
	Reference	Z. Naturforsch. 36b, 353—358 (1981); eingegangen am 18. November 1980
	Published	1981
	Keywords	Phosphorus Compounds, [3 + 2] Cycloreversion Reactions, [1, 4] Chlorine Shift, 2 -Azabuta-1, 3 -dienes
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	TEI-XML for	default:Reihe_B/36/ZNB-1981-36b-0353.pdf
	Identifier	ZNB-1981-36b-0353
	Volume	36

18	Author	Friedrich Boberg, Rainer Voss	Requires cookie*
	Title	Markierte Verbindungen, XXV 1 Chloraustausch zwischen 1.2.3.3-Tetrachlor-l-propen und Antimon(III)-chlorid -das 1.2.3-Trichlorpropenylium-Ion On Labelled Compounds, XXV 1 Chlorine Exchange between 1,2,3,3-Tetrachloro-l-propene and Antimony(Ill)-chloride — the 1,2,3-Trichloropropenylium Ion
	Reference	(Z. Naturforsch. 31b, 480—486 [1976]; eingegangen am 13. November 1975)
	Published	1976
	Keywords	Chlorine Exchange, 1, 2, 3, 3-Tetrachloro-l-propene, 1, 2, 3-Trichloropropenylium Ion, Ally lie Rearrangement, eis j trans-Isomerization
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	TEI-XML for	default:Reihe_B/31/ZNB-1976-31b-0480.pdf
	Identifier	ZNB-1976-31b-0480
	Volume	31

19	Author	Gerd-Volker Röschenthaler	Requires cookie*
	Title	The Insertion of Hexafluoroacetone into P-H Bonds of Phosphanes MenPH3_n
	Reference	Z. Naturforsch. 33b, 311—315 (1978); eingegangen am 12. Dezember 1977/19. Januar 1978
	Published	1978
	Keywords	2-Hydroxy-l, l, l, 3, 3, 3-hexafluoroisopropyl-phosphanes, Hexafluoroacetone, Bis( 1, 1, 1, 3, 3, 3-hexafluoroisopropoxy )dimethylfluorophosphorane
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	Identifier	ZNB-1978-33b-0311
	Volume	33

20	Author	Hubert Schmidbaur, Peter Holl	Requires cookie*
	Title	Die Reaktion eines gemischten Doppelylids mit Ethylenoxid Reaction of a Mixed Double Ylide with Ethylene Oxide
	Abstract	Dimethyl-trimethylphosphinimino-methylene-phosphorane, (CH3)3P=N-P(CH3)2 = CH2 was found to react with ethylene oxide to form a 1:1 adduct, that was identified as 2,2-dimethyl-2-trimethylphosphinimino -1,2 A 5 -oxaphospholane. According to its 1 H, 13 C, 31 P NMR spectra it is assigned a rigid trigonal bipyramidal structure with nitrogen and oxygen atoms in axial positions.
	Reference	Z. Naturforsch. 33b, 572—573 (1978); eingegangen am 28. Februar 1978
	Published	1978
	Keywords	Ylides, Ethylenoxide, 1, 2-Oxaphospholane
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	TEI-XML for	default:Reihe_B/33/ZNB-1978-33b-0572_n.pdf
	Identifier	ZNB-1978-33b-0572_n
	Volume	33

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