2009
DOI: 10.1016/j.tetlet.2009.03.038
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A simple protocol for the synthesis of a piperidine-2,6-dione framework from Baylis–Hillman adducts

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Cited by 19 publications
(9 citation statements)
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“…Seven structures have been reported for tetra-and penta-substituted glutarimides. Five structures-compounds 226 [194], 227 [195], 228 [180], 229 [196] and 230 [196] (Figure 69) exist as simple R 2 2 (8) dimers of category A. The compounds 231 [196] and 232 [196] exist as linear C( 6) chains of imide NH to remote CN nitrogen hydrogen bonding of pattern E.…”
Section: Tetra-and Pentasubstituted Glutarimidesmentioning
confidence: 99%
See 1 more Smart Citation
“…Seven structures have been reported for tetra-and penta-substituted glutarimides. Five structures-compounds 226 [194], 227 [195], 228 [180], 229 [196] and 230 [196] (Figure 69) exist as simple R 2 2 (8) dimers of category A. The compounds 231 [196] and 232 [196] exist as linear C( 6) chains of imide NH to remote CN nitrogen hydrogen bonding of pattern E.…”
Section: Tetra-and Pentasubstituted Glutarimidesmentioning
confidence: 99%
“…Five structures, viz. compounds 207[160], 208[160], 209[180], 210[180] and 211[181] display simple linear ribbon type hydrogen bonding of category B. In the case of 207 and 208 either the CO nearer the substituents of the CO further away can be involved, giving two different structures.…”
mentioning
confidence: 99%
“…[200] Orthoester Johnson-Claisen rearrangement of compounds 389 (Scheme 71) led to γ-cyano γ,δ-unsaturated esters 390. [200] Orthoester Johnson-Claisen rearrangement of compounds 389 (Scheme 71) led to γ-cyano γ,δ-unsaturated esters 390.…”
Section: Other Applications -Syntheses Of Building Blocks Intermediamentioning
confidence: 99%
“…1996, 747. que ambas as reações estariam ocorrendo via ET-I (tensão 1,3-diaxial) e a isomerização de Z conduziria ao produto E. Os autores isolaram o isômero Z com R sendo fenil e p-clorofenil e os submeteram às mesmas condições reacionais (ortoacetato de trietila na presença do ácido propanóico durante 1,5 horas a 145ºC). Entretanto, apenas o isômero Z foi recuperado e a hipótese de isomerização foi descartada.Em 2009, o mesmo grupo de pesquisa de D. Basavaiah utilizou o rearranjo de Claisen de orto éster, para síntese de piperidina-2,6-diona (r.43), heterocíclicos importantes biologicamente (Esquema 16) 38. Esquema 16.…”
unclassified
“…Esquema 16. Síntese de piperidina-2,6-dionas, realizada por D. Basavaiah 38. A síntese em quatro etapas reacionais (one-pot) iniciou-se pelo álcool alílico r.41 (obtido pela reação de MBH entre o respectivo aldeído com acrilonitrila).…”
unclassified