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  • http://dspace.mit.edu/bitstream/handle/1721.1/31113/56473986.pdf?sequence=1
    8 Pfau and Plattner were able to validate their proposal through the synthesis of a blue hydrocarbon which possessed the azulene nucleus, see: Pfau, P.; Plattner, P1.
  • http://dspace.mit.edu/bitstream/handle/1721.1/17372/31053583.pdf?sequence=1
    methods for the synthesis of azulenes have relied heavily on a dehydrogenative approach in which a suitable... In fact, the landmark 1936 synthesis of 4-methylazulene (22) by Pfau and Plattner used this strategy (eq 1).
  • http://dspace.mit.edu/bitstream/handle/1721.1/39061/35332532.pdf?sequence=1
    occurring guaiazulene by Pfau and Plattner in 1936,2 to the explosion in the 1990's of research relating to buckminsterfullerene (3), aromatic compounds have long enjoyed a Plesse's azulene dissertation is the synthesis of a new non-alternant aromatic hydrocarbon, cyclopenta[a]phenalene (4).
  • A new way of synthesis of alkylated azulenes
    The Verh ~ ltnisse complicates itself azulenes substituted by mehrfaeh so e.g. by the synthesis of the nattirlichen Guaj-azulens2) that show an alkyl substitution in 1,4,7. PFAU and PL. A. PLATTNER 5) described, that could obtain 4-phenyl-azulene (X) by turnover with Phenylmagnesiumbromid and subsequent...
  • Constitution, light absorption and reactive behavior of colored Pyridiniumbetaine
    The Verh ~ ltnisse complicates itself azulenes substituted by mehrfaeh so e.g. by the synthesis of the nattirlichen Guaj-azulens2) that show an alkyl substitution in 1,4,7. PFAU and PL. A. PLATTNER 5) described, that could obtain 4-phenyl-azulene (X) by turnover with Phenylmagnesiumbromid and subsequent...
  • (IUCr) The crystal and molecular structure of azulene
    Its structure was first elucidated by Pfau & Plattner (1936) and has been generally represented by two Kekulg-type formulae, A previous crystallographic investigation of azulene (Gtinthard, Plattner & Brandenberger, 1948) showed that the apparent space group is P21/a (C~h) with two... ...reflexions and further refinement of the atomic positions by Fourier and difference Fourier syntheses reduced the value...
  • Cyclopolyolefins Derived from Acetylene
    acetylenes with acetylene, Cope and co-workers") found a direct method of synthesis of mono- or di... Azulene was obtained as a by-product during the preparation of C.O.T., contami- nated with... Pfau and Plattner ") .
  • The Mathematics and Topology of Fullerenes
    As chemical entities, the azulenes were first named – after the colour of azulene itself – in 1864, by Piesse, but more than 70 years then elapsed before the essential structure was established (St. Pfau and Plattner 1936). ...since then, however, chemists have been intrigued by the many ways in which azulenes and benzenoids are... ...C66 isomers, including the C66–C2v isomer with two pairs of fused pentagons experimentally detected in metallofullerenes synthesis .
  • Diagnostic and therapeutic applications of azulenyl nitrone spin traps
    Since the elegant structural elucidation of the blue sesquiterpenoid hydrocarbon guaiazulene by Pfau and Plattner in Switzerland in 1936 [1], the chemistry of the azulenes , largely through the many contributions of Hafner and Nozoe, has developed into a mature and integral branch... ...other neurodegener- ative illnesses such as Alzheimer’s disease, and to the design and synthesis of congeners with...
  • Studies on antibiotic of higher plants
    ...~ shows the maxima by 243, 279 (main maximum) 285, 332, 343; 556, 579 (main maximum in the Sichtbaren), 601,630, 659 and 694 m ~ z; A. PLATTNER joins well the yon... ...~ fiir of gigkeiten of azulenes alkylated to spectra. Chem. 50S, 274 (1933). s) PFAU , A. ST., and PL.A. PLATT~ER: Helv. ehim. Any protein synthesis by growth, by the cell division and is bound the secretory egg woman production...


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