DBU-Catalyzed, facile and efficient method for synthesis of spirocyclic 2-oxindole derivatives with incorporated 6-amino-4H-pyridazines and fused derivatives via [3+3] atom combination
In: Tetrahedron (Oxford. Print), Jg. 65 (2009), Heft 48
academicJournal
- print,
Zugriff:
3-Cyanomethylidene oxindole derivatives were prepared in excellent yields utilizing DBU-promoted Knoevenagel condensation of isatin derivatives with active methylene reagents. The isolated products were then reacted with azaenamines via a DBU-promoted Michael addition to yield spirocyclic 2-oxindole derivatives with incorporated 6-amino-4H-pyridazines and their fused derivatives.
Titel: |
DBU-Catalyzed, facile and efficient method for synthesis of spirocyclic 2-oxindole derivatives with incorporated 6-amino-4H-pyridazines and fused derivatives via [3+3] atom combination
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Autor/in / Beteiligte Person: | ABDELHAMID, Ismail A ; MOHAMED, Mona H ; ABDELMONIEM, Amr M ; GHOZLAN, Said A. S |
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Zeitschrift: | Tetrahedron (Oxford. Print), Jg. 65 (2009), Heft 48 |
Veröffentlichung: | Kidlington: Elsevier, 2009 |
Medientyp: | academicJournal |
Umfang: | print, |
ISSN: | 0040-4020 (print) |
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