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.

Bibliographic Details
Main Authors: G. Shanmugam, S. Shanmuga Sundara Raj, R. Thirumurugan, N. D. Pradeep Singh, Viswanathan Kasinath, Geetha Gopalakrishnan
Format: Article
Language:English
Published: MDPI AG 2000-06-01
Series:Molecules
Subjects:
Osthol
pyranocoumarins
demethylation
cyclisation
hard-soft interactions
Online Access:http://www.mdpi.com/1420-3049/5/6/880/

Internet

http://www.mdpi.com/1420-3049/5/6/880/

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