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Nickel Hemiporphyrazines as Bisdienes and Bisdienophiles: Synthesis and Characterization
Author(s) -
Rack Michael,
Hauschel Bernd,
Hanack Michael
Publication year - 1996
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19961290220
Subject(s) - chemistry , nickel , alkoxy group , nuclear magnetic resonance spectroscopy , characterization (materials science) , stereochemistry , nmr spectra database , medicinal chemistry , spectral line , organic chemistry , nanotechnology , alkyl , materials science , physics , astronomy
Abstract The bisdienophilic (hemiporphyrazinato)nickel complexes 1a‐d bearing various alkoxy groups were synthesized from diiminoisoindoles 9a‐d , diaminopyridines 10a, d , and nickel acetate. Reaction of 1a‐d with an excess of pentaene 3 delivered the macrocyclic bisdienes 2a‐d . The hemiporphyrezines were characterized by 1 H‐ and 13 C‐NMR spectroscopy. The NMR spectra of the 1,6,16,21‐tetrabutoxy‐substituted compounds 1b and 2b are discussed with respect to the presence of syn/anti isomers.