Formation of Chromenes and Coumarin Derivatives From Salicylaldehydes and 2-Pentenedioate: Facile Route to 3-Formylcoumarins

Autor:	David J. Triggle, Seetharamaiyer Padmanabhan, Ravikumar Peri
Rok vydání:	1996
Předmět:	chemistry.chemical_compound chemistry Osmium tetroxide Aryl Organic Chemistry Condensation Periodate Organic chemistry Knoevenagel condensation Coumarin Catalysis
Zdroj:	Synthetic Communications. 26:827-831
ISSN:	1532-2432 0039-7911
DOI:	10.1080/00397919608086759
Popis:	Condensation of salicylaldehydes with diethyl 2-pentenedioate under the Knoevenagel conditions afforded either coumarin-3-acrylates or 2H-chromenedicarboxylate derivatives depending on the substituents on the aryl nucleus. Osmium tetroxide catalyzed periodate oxidation of coumarin-3-acrylates gave 3-formylcoumarin derivatives.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::74f1c07ccd73a3f8478241ccead26a13 https://doi.org/10.1080/00397919608086759 Zobrazit plný text záznamu