Mmh. Arief, SYNTHESIS AND BIOLOGICAL-ACTIVITY OF CERTAIN -SUBSTITUTED-4-BENZYLIDENE-2-PHENYL-5-IMIDAZOLONES, Indian journal of chemistry. Sect. B: organic chemistry, including medical chemistry, 37(6), 1998, pp. 558-563
1-Substituted-4-benzylidene-2-phenyl-5-imidazolone derivatives 4-7, 9-
15 have been synthesised for their potential biological activity. The
synthesis involves the base and acid catalyzed reactions of azide 3 an
d/or acid chloride 2. Compounds 5c and 5d are easily cyclized to give
1,3,4-oxadiazole derivatives 6a and 6b. Representative examples of int
ernal Friedel-Craft and [4+2]cycloaddition have also been investigated
.