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Molecules 2000, 5(6), 880-885; doi:10.3390/50600880
Article

A New Synthetic Route to Dihydrobenzopyran Via Tandem Demethylation Cyclisation

1,* , 1, 1, 2, 3 and 2
Received: 17 April 2000; Accepted: 26 May 2000 / Published: 16 June 2000
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Abstract: 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.
Keywords: Osthol; pyranocoumarins; demethylation; cyclisation; hard-soft interactions Osthol; pyranocoumarins; demethylation; cyclisation; hard-soft interactions
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Gopalakrishnan, G.; Kasinath, V.; Pradeep Singh, N.D.; Thirumurugan, R.; Sundara Raj, S.S.; Shanmugam, G. A New Synthetic Route to Dihydrobenzopyran Via Tandem Demethylation Cyclisation. Molecules 2000, 5, 880-885.

AMA Style

Gopalakrishnan G, Kasinath V, Pradeep Singh ND, Thirumurugan R, Sundara Raj SS, Shanmugam G. A New Synthetic Route to Dihydrobenzopyran Via Tandem Demethylation Cyclisation. Molecules. 2000; 5(6):880-885.

Chicago/Turabian Style

Gopalakrishnan, Geetha; Kasinath, Viswanathan; Pradeep Singh, N. D.; Thirumurugan, R.; Sundara Raj, S. S.; Shanmugam, G. 2000. "A New Synthetic Route to Dihydrobenzopyran Via Tandem Demethylation Cyclisation." Molecules 5, no. 6: 880-885.



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