A New Synthetic Route to Dihydrobenzopyran Via Tandem Demethylation Cyclisation

A New Synthetic Route to Dihydrobenzopyran Via Tandem Demethylation Cyclisation

A tandem demethylation-cyclisation reaction resulting in the formation of pyran rings using AlCl3/EtSH reagent under mild reaction conditions is reported. X-ray diffraction studies on the intermediate support the suggested mechanism.

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Veröffentlicht in:Molecules (Basel, Switzerland) Switzerland), 2000-06, Vol.5 (6), p.880-885
Hauptverfasser: Gopalakrishnan, Geetha, Kasinath, Viswanathan, Pradeep Singh, N. D., Thirumurugan, R., Sundara Raj, S. Shanmuga, Shanmugam, G.
Format: Artikel
Sprache:eng
Schlagworte:
Crystallography
cyclisation
demethylation
hard-soft interactions
Natural products
Osthol
Phenols
pyranocoumarins
Temperature
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Beschreibung
Zusammenfassung:A tandem demethylation-cyclisation reaction resulting in the formation of pyran rings using AlCl3/EtSH reagent under mild reaction conditions is reported. X-ray diffraction studies on the intermediate support the suggested mechanism.
ISSN:1420-3049
1420-3049
DOI:10.3390/50600880