Zobrazeno 1 - 10 of 239 pro vyhledávání: '"Hans Suschitzky"'
1
Syntheses and reactions of 2,2′-bisbenzimidazole systems
Autor: Richard Neidlein, Hans Suschitzky, Benita von Glahn, Walter Kramer
Publikováno v: Journal of Heterocyclic Chemistry. 36:1001-1012
Nucleophilic reactions of two 2,2′-bisbenzimidazole systems, namely the bis(2H-benzimidazole-2-ylidene) 2 and the dispiro[2H-benzimidazole-2,1′-cyclohexane-4′,2″-2″H-benzimidazole] 3, as well as the syntheses of new 2,2′-bisbenzimidazoles
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2323097b551371f8c6893165f322a594
https://doi.org/10.1002/jhet.5570360429
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2
Reactions of 2,3-dihydrospiro[1H-4- and 5-azabenzimidazole-2,1′-cyclohexane] with nucleophiles: A potential route to some substituted aromatic heterocycles
Autor: Ralf Reizner, Hans Suschitzky, Richard Neidlein, Walter Kramer
Publikováno v: Journal of Heterocyclic Chemistry. 36:117-128
The readily available title compounds 2, 16 and 27 react with pseudohalogenes (cyanide, azide), carbon and heterocyclic N-nucleophiles in the presence of manganese dioxide to give the corresponding substituted azaisobenzimidazoles (= 2H-azabenzimidaz
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::60f90d1d9f0474fec57c7cded9cfdd5c
https://doi.org/10.1002/jhet.5570360118
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3
2H-benzimidazoles (isobenzimidazoles). Part 10. Synthesis of polysubstituted o-phenylenediamines and their conversion into heterocycles, particularly 2-substituted benzimidazoles with known or potential anthelminthic activity
Autor: Brian Iddon, Hans Suschitzky, Justine C. Hazelton, Ley H. Woolley
Publikováno v: Tetrahedron. 51:10771-10794
Polysubstiluted o -phenylenediamines were syathesised in moderate to high yield by reductive cleavage of the corresponding 2 H -benzimidazole-2-spirocyclohexane with sodium dithionite in aqueous ethanol and converted into methyl benzimidazole-2-carba
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1ed93970113db843dfd814537d80dca3
https://doi.org/10.1016/0040-4020(95)00642-l
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4
2H-benzimidazoles (isobenzimidazoles). Part 9. Synthesis and reactions of 4,6-dibromo-2H-benzimidazole-2-spirocyclohexane
Autor: Hans Suschitzky, Justine C. Hazelton, Brian Iddon, Alan D. Redhouse
Publikováno v: Tetrahedron. 51:5597-5608
The title compound 1 was prepared by condensation of 3,5-dibromo- o -phenylenediamine 10 with cyclohexanone and oxidation of the resulting 4,6-dibromo-1,3-dihydro-2 H -benzimidazole-2-spirocyclohexane 5 with manganese dioxide. With sodium 2,3-dichlor
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cf4cb731643ba3ee6b97156de799a266
https://doi.org/10.1016/0040-4020(95)00220-3
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5
2,3-Dihydrospiro[1H-4- and 5-azabenzimidazole-2,1? -cyclohexane] ( = Spiro[cyclohexane-1,2?(3?H)-1?H-imidazo[4,5-b]pyridine] and Spiro[cyclohexane-1,2?(3?H)-1?H-imidazo[4, 5-c]pyridine]): Reactions with Nucleophiles
Autor: Richard Neidlein, Stefan Schwoch, Hans Suschitzky, Walter Kramer
Publikováno v: Helvetica Chimica Acta. 77:2175-2190
The readily available title compounds 4a and 24 react with N-, O-, S-, and C-nucleophiles in presence of MnO2 to give the corresponding mono- or disubstituted 2H-azabenzimidazoles ( = azaisobenzimidazoles), e.g., 11–18 and 26a–h, respectively, or
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6a1274659ff45c7c0a26fb829f706949
https://doi.org/10.1002/hlca.19940770811
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7
ChemInform Abstract: New Organometallic Derivatives of 1,6-Methano(10)annulene
Autor: Hans Suschitzky, Richard Neidlein, P. J. Rosyk, Walter Kramer
Publikováno v: ChemInform. 22
The reverse addition of 2-lithio-1,6-methanol[10]annulene (2-lithio-1,6-methanocyclodecapentaene) to some group VI metal crabony compounds followed by alkylation with meerwein salts gave the E. O. Fischer transition metal complexes in good to excelle
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::eda707894440ebe5e755ed1be10b14c1
https://doi.org/10.1002/chin.199136242
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8
ChemInform Abstract: 2H-Benzimidazoles (Isobenzimidazoles). Part 6. Sulfur Derivatives
Autor: Brian Iddon, Hans Suschitzky, Justine C. Hazelton, Ley H. Woolley
Publikováno v: ChemInform. 23
The products obtained by treating 2H-benzimidazole-2-spirocyclohexane 1 or its 5-chloro derivative 9 with various thiols (PrSNa, ButSNa, PhSNa, pyridine-2-thiol, or pyrimidine-2-thiol) depend on the reaction conditions. Monosubstitution is possible a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::61d4594b9a0871839e7519368332480d
https://doi.org/10.1002/chin.199229167
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9
ChemInform Abstract: 2H-Benzimidazoles (Isobenzimidazoles). Part 7. A New Route to Triclabendazole (5-Chloro-6-(2,3-dichlorophenoxy)-2-methylthio-1H- benzimidazole) and Congeneric Benzimidazoles
Autor: Peter Kutschy, Andrew G. Robinson, Franz A. Neugebauer, Hans Suschitzky, Walter Kramer, Brian Iddon
Publikováno v: ChemInform. 24
A new synthesis of the selective anthelmintic agent triclabendazole 7 from the readily available 5,6-dichloro-2H-benzimidazole-2-spirocyclohexane 2 by simple steps is described. Analogous benzi-midazoles difficult to prepare by conventional methods a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a193749fb9ade7d3a62399dd66c5df65
https://doi.org/10.1002/chin.199312158
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