Citation:
SUN Yong, DING Ming-Wu. Synthesis of Imidazolone amines[J]. Chinese Journal of Applied Chemistry,
;2004, 21(12): 1281-1284.
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2-Thio-3-amino-5-arylmethylene-4-imidazolidinones(3) were prepared via the tandem aza-Wittig reaction of vinyliminophosphoranes(1) with carbon disulfide and hydrazines. Then 2-alkylthio-3-amino-5-arylmethylene-4H-imidazolin-4-ones(4) were synthesized by S-alkylation of compound 3. The reaction conditions were discussed, the spectral properties of the synthesized compounds were elucidated, and their structures were confirmed by elemental analysis, IR, 1H NMR and MS. At room temperature or 60~80℃ the compounds 3a~3d and 4a~4f were obtained in yields of 63%~97% and 53%~76% respectively.
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Keywords:
- imidazolidinone,
- 4H-imidazolinone,
- aza-Wittig reaction,
- synthesis
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