A single-step synthesis of ayapin, limmettin, scoparone, leptodactylone, fraxinol, isoscopoletin, 5,6,7-trimethoxy coumarin and 7-methoxy-8-hy-droxy coumarin

Paknikar, S.K.; Bhattacharjee, J.; Nadkarni, K.K.

dc.contributor.author	Paknikar, S.K.
dc.contributor.author	Bhattacharjee, J.
dc.contributor.author	Nadkarni, K.K.
dc.date.accessioned	2015-06-03T06:40:15Z
dc.date.available	2015-06-03T06:40:15Z
dc.date.issued	1994
dc.identifier.citation	Journal of the Indian Institute of Science. 74(2); 1994; 277-285.	en_US
dc.identifier.uri	http://journal.iisc.ernet.in/archives/archives/v9-79/Vol.74(1-6)1994/Vol.74(2)1994/vol74(2)1994.pdf
dc.identifier.uri	http://irgu.unigoa.ac.in/drs/handle/unigoa/659
dc.description.abstract	A single-step synthesis of eight natural coumarins, namely, ayapin, limmetin, scoparone, leptodactylone, fraxinol, isoscopoletin, 5,6,7-trimethoxy coumarin and 7-methoxy-8-hydroxy coumarin is hang reported. The method involves the transfer of C-3 umt of cinnamic acids on to appropriate phenols in the presence of polyphosphorice acid (PPA) to obtain the corresponding coumanns. The ease with which the reaction occurs, the moderately good yields and the ready availability of starring materials are hallmarks of this reaction. The scope of the reaction has heen discussed in the present paper.
dc.subject	Chemistry	en_US
dc.title	A single-step synthesis of ayapin, limmettin, scoparone, leptodactylone, fraxinol, isoscopoletin, 5,6,7-trimethoxy coumarin and 7-methoxy-8-hy-droxy coumarin	en_US
dc.type	Journal article	en_US
dc.identifier.impf	y