5,7-diarylspiro[4,5,6,7-tetrahydrobenzo[d][1,2,3]selena/thiadiazole-6,5 '-(hexahydropyrimidine)]-2 ',4 ',6 '-triones/2 '-thioxo-4 ',6 '-diones from cyclohexanonedicarboxylates: Part V
The keto and gem-ester functionalities of cyclohexanonedicarboxylates (1) o
ffer a facile route for the synthesis of 5,7-diarylspiro[4,5,6,7-tetrahydro
benzo[d][1,2,3]selena/thiadiazole-6,5'-(hexahydropyrimidine)]-2',4',6'-trio
nes (6 and 8) and -2'-thioxo-4',6'-diones (7 and 9). The new compounds weve
characterized by IR, NMR, and CMR spectral data. (C) 1999 John Wiley & Son
s, Inc.