A series of novel hybrid heterocyclic compounds, 3-(3-alkyl-2,6-diarylpiperin-4-ylidene)-2-thioxoimidazolidin-4-ones were synthesised and a comparative study was also carried out under microwave irradiation. The synthesised compounds were characterised by their melting points, elemental analysis, MS, FT-IR, one-dimensional NMR (1H, D2O exchanged 1H and
Synthesis of 6-Substituted/Unsubstituted- 7,9-diaryl-1,2,4,8-tetraazaspiro[4.5]- decan-3-thiones
作者:C. Ramalingan、S. Balasubramanian、S. Kabilan
DOI:10.1081/scc-120018753
日期:2003.1.5
Some 2,6-diarylpiperidin-4-one thiosemicarbazones (1a-8a), obtained from the corresponding 2,6-diarylpiperidin-4-ones (1-8) on oxidative cyclization with H2O2 at OdegreesC provide 7,9-diaryl-1,2,4,8-tetraaza spiro[4.5]decan-3-thiones(1b-8b) in excellent yields. The structures of these compounds have been established on the basis of their elemental, analytical and spectral data.