An. Osman et al., SYNTHESIS AND ANTICONVULSANT ACTIVITY OF SOME SPIRO COMPOUNDS DERIVEDFROM BARBITURIC AND THIOBARBITURIC ACIDS .1., Indian journal of chemistry. Sect. B: organic chemistry, including medical chemistry, 35(10), 1996, pp. 1073-1078
Divinyl ketones (1), prepared by the condensation of acetone with the
appropriate aromatic aldehydes, on Michael addition with barbituric an
d thiobarbituric acids afford the desired spiro compounds (2a-j). The
ketoximes (3a-j) obtained from 2a-j on Beckmann transformation by trea
tment with PCl5 furnish the spiro azepines (4a-j). Alkylation of some
of the compounds 2 afford the anticipated N-substituted products (5a-i
). Preliminary pharmacological screening of some of the new compounds
reveal their anticonvulsant activity.