Synthesis of new 5-alkyl substituted 4-thiazolidinones utilising condensation with ethyl 2-bromo alkanoates


Klip N. T. , Guezel O., Guersoy A.

JOURNAL OF CHEMICAL RESEARCH, ss.378-379, 2008 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: Konu: 7
  • Basım Tarihi: 2008
  • Doi Numarası: 10.3184/030823408x332194
  • Dergi Adı: JOURNAL OF CHEMICAL RESEARCH
  • Sayfa Sayıları: ss.378-379

Özet

2-[(3-Ethyl-4-oxo-3,4-dihydroquinazolin-2-yl)mercaptoacetyl hydrazono]-3-alkyl/aralkyl-5-ethyl/propylthiazolidin-4-ones were synthesised by the cyclisation of 1-[(3-ethyl-4-oxo-3,4-dihydroquinazolin-2-yl)mercaptoacetyl]-4alkyl/aralkyl thiosemicarbazides with ethyl 2-bromobutanoate or ethyl 2-bromopentanoate in the presence of anhydrous sodium acetate in anhydrous ethanolic medium. The regioisomer 2-alkyl/aralkyl 3-[(3-ethyl-4-oxo-3,4dihydroquinazolin-2-yl)mercaptoacetylamino]-5-ethyl/propylthiazolidin-4-ones were not formed.