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  • Articles  (38)
  • Organic Chemistry  (31)
  • Ruthenium complexes  (4)
  • Cycloadditions  (2)
  • Macrocycles  (2)
  • Wiley-Blackwell  (38)
  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 124 (1991), S. 1733-1738 
    ISSN: 0009-2940
    Keywords: Phthalocyanine ; Ruthenium complexes ; Pyridines ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Soluble Bisaxially Substituted (Phthalocyaninato)ruthenium ComplexesSeveral attempts to prepare (tBu4Pc)Ru only led to an impure product (tBu4Pc)RuLx. This reacts quantitatively with pyridine to form (tBu4Pc)Ru(py)2, easily purified by chromatography. In addition the preparation of (tBu4Pc)RuL2 with L = pyridine, 2-picoline (2-pic), 3-picoline (3-pic), 4-picoline (4-pic), 2,5-lutidine (2,5-lut), and 2,6-lutidine (2,6-lut), respectively, is described. All complexes are characterized by spectroscopic methods including 1H-NMR spectroscopy. Not even in the cases of (tBu4Pc)RuL2 with L = 2-pic and 2,5-lut, a careful removal of the ligands L by thermogravimetric methods (TG/DTA) leads to pure (tBu4Pc)Ru. For comparison, the bisadducts PcRuL2 with L = pyridine, picolines (2-pic, 3-pic, 4-pic), lutidines (2,3-lut, 2,5-lut, 2,6-lut), and chloropyridines (2-Clpy and 3-Clpy), respectively, are prepared by treatment of PcRu with an excess of the ligand. For the first time (phthalocyaninato)iron complexes PcFeL2 with sterically hindered axial ligands, e.g. PcFe(2-pic)2, are prepared and characterized by 57Fe Mößbauer spectroscopy.
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 130 (1997), S. 801-806 
    ISSN: 0009-2940
    Keywords: Unsymmetrical phthalocyanines ; Hemiporphyrazines ; Macrocyclic bisdienes and bisdienophiles ; Diels-Alder reactions ; Ladder polymers ; Cycloaddition ; Macrocycles ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The specific synthesis of a metal-free bisdienophilic phthalocyanine 193, suitable for repetitive Diels-Alder reactions, is reported. This was achieved by condensation of 191,3,3-trichloro-6/7-nitroioindolenine (191) and 4,9-dibutoxy-2,3,5,8-tetrahydro-1,3-diimino-1H-5,8-epoxybenz[f]isoindoline (2). The ability of 3 to undergo Diels-Alder reactions was tested by reaction with an excess of 1,2,3,4-tetraphenylcyclopentadienone (5). Experimental data of the hemiporphyrazines 9, 10, and 11, which can be used as precursors for the synthesis of ladder polymers, are also given in the Experimental Section.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 126 (1993), S. 2565-2566 
    ISSN: 0009-2940
    Keywords: Phthalocyaninato complexes ; Ruthenium complexes ; Phosphanes ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Hitherto unknown ruthenium phthalocyanine complexes with phosphane ligands - PcRu(PEt2Ph)2 (1) and PcRu(PPh3)2 (2) - soluble in common organic solvents were prepared. Two methods were used for their synthesis: 1) Reaction of phthalonitrile with [Ru2Cl3(PEt2Ph)6]Cl in n-pentanol in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) and 2) reaction of PcRu with the corresponding phosphanes. The products 1 and 2 were characterized by their IR, UV/Vis, FD-MS, and 1H-NMR data.
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 124 (1991), S. 1607-1612 
    ISSN: 0009-2940
    Keywords: Phthalocyanine ; Ruthenium complexes ; Azanaphthalenes ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: (Phthalocyaninato)ruthenium(II) (PcRu) reacts with different azanaphthalenes such as quinoxaline, 2-methylquinoxaline, quinazoline, phthalazine, quinoline, pyrido[2,3-b]pyrazine, pteridine, isoquinoline and 1,5-naphthyridine to form the corresponding bisaxially coordinated PcRuL2 complexes 1-9. The IR, 1H-NMR, UV/Vis, TG/DTA, and FD-MS data are discussed in detail for all the complexes prepared.
    Additional Material: 3 Tab.
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 128 (1995), S. 929-933 
    ISSN: 0009-2940
    Keywords: (Phthalocyaninato)ruthenium, soluble tert-butyl-substituted ; (2,3-Naphthalocyaninato)ruthenium, tert-butyl-substituted ; Ruthenium complexes ; Phthalocyaninato complexes ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The first synthesis of pure tert-butyl-substituted (phthalocyaninato)- and (2,3-naphthalocyaninato)ruthenium [(tBu)4-MacRu] by thermal decomposition of (tBu)4MacRu(L)2 (L = 3-chloropyridine, ammonia) is described. The compounds were characterized by UV/Vis, IR, and NMR measurements.
    Additional Material: 1 Ill.
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 2000 (2000), S. 303-311 
    ISSN: 1434-193X
    Keywords: Phthalocyanines ; Cycloadditions ; Ladder Oligomers ; Macrocycles ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: ---The condensation of substituted diiminoisoindolines with alkyl-substituted 1,3,3-trichloroisoindolines results in the formation of the highly soluble metal-free phthalocyanines 9, 15. By the same methodology, metal-containing phthalocyanines such as 16, 18 are accessible from suitable metal salts. The precursors 24 and26 were obtained from the phthalocyanine 9 and tetracyclone. The generation of the phthalocyanines 23 and 25 possessing isobenzofuran moieties as diene subunits was accomplished; in the presence of excess 28, the tetracyclone-bisadducts 22 and 24 were transformed into the model compounds 29 and 30, while an excess of 20 or 9 leads to the appropriate trimer-oligomers 31 and 32.
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  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 1999 (1999), S. 1687-1691 
    ISSN: 1434-193X
    Keywords: Nickel phthalocyanines ; Phthalocyanines ; Diels-Alder reactions ; Polymers ; Wittig reactions ; Cycloadditions ; Chemistry ; General Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The nickel phthalocyanine 4, which is soluble in common organic solvents, has been synthesized from the corresponding tetracyclone monoadduct 1 and acrolein (3). Reaction of 4 with p-toluenesulfonic acid leads to the modified phthalocyanine monoaldehyde 5. The capability of 5 to undergo a Wittig reaction has been demonstrated with benzyltriphenylphosphonium bromide (6). Furthermore, a dimer 9 has been synthesized by treating 5 with 0.5 equiv. of xylylenebis(triphenylphosphonium bromide) (8). Dimer 9 constitutes a model compound for corresponding PPV polymers containing phthalocyanine subunits.
    Additional Material: 1 Ill.
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  • 8
    ISSN: 0894-3230
    Keywords: Organic Chemistry ; Physical Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The reaction of monosilylated imines and a disilylated enamine with nitrosyl salts in dichloromethane at -78°C is shown to proceed via intermediate vinyl diazonium salts and vinyl cations.
    Additional Material: 1 Tab.
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  • 9
    Electronic Resource
    Electronic Resource
    Chichester : Wiley-Blackwell
    Journal of Physical Organic Chemistry 8 (1995), S. 191-194 
    ISSN: 0894-3230
    Keywords: Organic Chemistry ; Physical Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The reaction of bis-silylated ynamines with different nitrosyl reagents affords products derived from an electrophilic attack at the β-carbon atom and not the expected alkynyldiazonium salts.
    Additional Material: 1 Tab.
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  • 10
    ISSN: 0170-2041
    Keywords: Sulfones, allyl nonafluorobutyl ; Chrysanthemic acid ; Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reaction of Allyl Nonafluorobutyl Sulfones with Michael Acceptors, Synthesis of Chrysanthemic Acid Derivatives3-Methyl-2-butenyl nonafluorobutyl sulfone (4) reacts with ethyl 3-methyl-2-butenoate (ethyl senecioate, 2) to form ethyl chrysanthemate (3) 5-Methyl-1-(2-methyl-1-propenyl)-3-pentenyl nonafluorobutyl sulfone (5) is formed as a byproduct. The nonaflone 4 is prepared by reaction of 3-methyl-2-butenyl bromide (9) with sodium nonafluorobutanesulfinate or by treating isoprene with nonafluorobutanesulfinic acid. Reaction of 3,3-dichloro-2-propenyl nonafluorobutyl sulfone (12) with ethyl senecioate (2) does not lead to ethyl permethrinate (13), instead self-condensation products of 12, the cyclopropyl sulfone 15 and the disulfone 16 are obtained.
    Notes: (3-Methyl-2-butenyl)nonafluorbutyl)sulfon (4) reagiert mit 3-Methyl-2-butensäure-ethylester (2) (Seneciosäure-ethylester) unter Bildung von Chrysanthemumsäure-ethylester (3). Als Nebenprodukt wird [5-Methyl-1-(2-methyl-1-propenyl)-3-pentenyl]-[nonafluorbutyl)sulfon (5) erhalten. Das Nonaflon 4 ist durch Umsetzung von 3-Methyl-2-butenylbromid (9) mit Natriumnonafluorbutansulfinat oder durch Umsetzung von Isopren mit Nonafluorbutansulfinsäure zugänglich. (3,3-Dichlor-2-propenyl)(nonafluorbutyl)sulfon (12) reagiert mit Seneciosäure-ethylester (2) nicht unter Bildung von Permethrinsäure-ethylester (13), sondern unter Selbstkondensation zu dem Cyclopropylsulfon 15 und dem Disulfon 16.
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