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I. V. Barinov, V. A. Chertkov
Decarboxylation of the Acids of
the 4-Phenyl-4H-cyclopenta[c]cinnoline Series
Abstract
Decarboxylation of the 4-phenyl-4H-cyclopenta[c]cinnoline-1-carboxylic acid 7 in boililing xylene yields
4-phenyl-4H-cyclopenta[c]cinnoline 2. Decarboxylation of the
acids substituted in position 3 depends on the nature of the substituents.
Decarboxylation of the chloroacid proceeds by similar way, the bromoacid yields
rearranged bromide – 1-brom-4-phenyl-4H-cyclopenta[c]cinnoline, whereas the acid with
3-COCF3 substituent do not undergo decarboxylation.
Copyright (C) Chemistry Dept., Moscow State University, 2002
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