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عنوان
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Synthesis of cobalt tetra-2,3-
pyridiniumporphyrazinato with sulfonic acid tags
as an efficient catalyst and its application for the
synthesis of bicyclic ortho-aminocarbonitriles,
cyclohexa-1,3-dienamines and 2-amino-3-
cyanopyridines†
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چکیده
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Cobalt tetra-2,3-pyridiniumporphyrazinato with sulfonic acid tag [Co(TPPASO3H)]Cl was produced and
catalyzed the synthesis of ortho-aminocarbonitriles, cyclohexa-1,3-dienamines and 2-amino-3-
cyanopyridines. The synthesis of 2-amino-3-cyanopyridines by using [Co(TPPASO3H)]Cl proceeded via
a cooperative vinylogous anomeric based oxidation mechanism. [Co(TPPASO3H)]Cl can be recycled and
reused six times with a marginal decreasing of its catalytic activity
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