| | 1 | Author
| FathyA. Amer, AbdelHamid Harhash, MaryL. Awad | Requires cookie* | | | Title
| Synthesis of 2-Methyl-l-phenylthiocarbamoylglyoxal Arylhydrazones and Diethyl(arylazo)(phenylthiocarbamoyl)malonate and their Reactions with Hydrazines  | | | | Abstract
| Treatment of a-phenylthiocarbamoyl acetyl acetone (1) with aromatic diazonium salts effects acetyl cleavage with the formation of 2-methyl-l-phenylthiocarbamoylglyoxal arylhydrazones (2a-c), which afford the anilinopyrazoles (5a-c) and the phenylimino-2-pyrazolines (6a-c) on treatment with hydrazine or phenyl hydrazine respectively. Treatment of diethyl a-phenylthiocarbamoyl malonate with aryl diazonium salts gave diethyl (arylazo)(phenylthiocarbamoyl) malonate which afford the 7-phenyl-5-(arylazo)-2,3,7-triazabicyclo[3,2,0]hept-l-ene-4,6-dione (9a, b) and its 3-phenyl derivatives (9c, d) with hydrazines and phenyl hydrazine respectively. | | | |
Reference
| Z. Naturforsch. 33b, 660—662 (1978); received January 5 1978 | | | |
Published
| 1978 | | | |
Keywords
| Hydrazines, Pyrazoles, Arylhydrazones | | | |
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| | | | | TEI-XML for
| default:Reihe_B/33/ZNB-1978-33b-0660.pdf | | | | Identifier
| ZNB-1978-33b-0660 | | | | Volume
| 33 | |
| 2 | Author
| | Requires cookie* | | | Title
| Infrarot-und Raman-spektroskopische Untersuchungen an Stereoisomeren eines anorganischen Phosphor-Stickstoff-Ringsystems* Infrared-and R am anspectroscopic Studies on Stereoisom ers o f an Inorganic Phosphorus-N itrogen-R ing-System | | | | Abstract
| U d o E n g e l h a r d t und G e r d D . J ü r g e n s The reaction of M eO P (S)C l2 with N 2H 5O H leads to cis-and £rans-3,6-dimethoxy-3,6-dithiocyclo-3,6-diphospha-l,2,4,5-tetrazane (1). The configurations of the products are assigned from comparisons of their Raman and IR spectra and from chromatographic and solubility data. | | | |
Reference
| (Z. Naturforsch. 32b, 1259—1262 [1977]; eingegangen am 1. August 1977) | | | |
Published
| 1977 | | | |
Keywords
| Diphosphatetrazanes, Hydrazine, Methoxy-thiophosphoricdichloride, Raman, *H NMR | | | |
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| | | | | TEI-XML for
| default:Reihe_B/32/ZNB-1977-32b-1259.pdf | | | | Identifier
| ZNB-1977-32b-1259 | | | | Volume
| 32 | |
| 3 | Author
| Michael Geschwentner, G. Ernot Elter, Anton Meller | Requires cookie* | | | Title
| Supermesityl-substituierte Hydrazinoborane Supermesityl-Substituted Hydrazinoboranes | | | | Abstract
| Difluoro(supermesityl)borane reacts with monolithiated hydrazines to give the correspond ing fluoroborylated hydrazines la -c , which could not be dehydrofluorinated to yield definite products. From dilithiated hydrazine the 1,2-borylated species 2 was obtained. The fluoro-borylhydrazones 3 a-3 d prepared in an analogous way, by dehydrofluorination with tert-butyllithium, led to 5-, 6-and 7-membered boron nitrogen heterocycles depending upon the substituents of the hydrazones. | | | |
Reference
| Z. Naturforsch. 49b, 459 (1994); eingegangen am 23. Januar 1994 | | | |
Published
| 1994 | | | |
Keywords
| Hydrazine, Hydrazones, Difluoro(superm esityl)borane, Hydrazinoboranes, Boron-Nitrogen Heterocycles | | | |
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| default:Reihe_B/49/ZNB-1994-49b-0459.pdf | | | | Identifier
| ZNB-1994-49b-0459 | | | | Volume
| 49 | |
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