87343-64-4Relevant academic research and scientific papers
ETUDE DE LA REACTIVITE DU 3-AMINO-2-BUTENOATE D'ETHYLE VIS-A-VIS D'AZOLINE-5-ONES.
Maquestiau, A.,Eynde, J.-J. Vanden,Manderlier, R.
, p. 1073 - 1082 (2007/10/02)
Various 1,3-disubstituted pyrazolin-5-ones, 3-phenylisoxazolin-5-one and 2-phenyloxazolin-5-one react with ethyl 3-amino-2-butenoate to yield compounds resulting from the elimination of ammonia between the precursors; subsequent intramolecular cyclization
ETUDE COMPARATIVE DE LA REACTIVITE DE L'ACETOACETATE D'ETHYLE ET DU 3-AMINOCROTONATE D'ETHYLE VIS-A-VIS DE COMPOSES PYRAZOLONIQUES
Maquestiau, A.,Haverbeke, Y. van,Eynde, J.-J. Vanden
, p. 451 - 458 (2007/10/02)
1-phenyl-3-methylpyrazolin-5-one, 1,5-dimethylpyrazolin-3-one and 1-phenyl-pyrazolidin-3,5-dione react with ethyl acetoacetate to yield pyrano pyrazole-6-ones.Starting from 1-phenyl-3-aminopyrazolin-5-one or from 1-methyl-5-aminopyrazolin-3-one, pyrazolo pyridin-6-ones are obtained.When ethyl 3-aminocrotonate instead of ethyl acetoacetate is used, the course of these reactions remains the same in most cases but yields are always higher.
