Application of Nazarov cyclization to access [6-5-6] and [6-5-5]tricyclic core embedded New Heterocycles : An easy entry to structures related to Taiwaniaquinoids

Singh, Ritesh; Parai, M K; Panda, Gautam

dc.contributor.author	Singh, Ritesh
dc.contributor.author	Parai, M K
dc.contributor.author	Panda, Gautam
dc.date.accessioned	2010-09-09T08:52:22Z
dc.date.available	2010-09-09T08:52:22Z
dc.date.issued	2009
dc.identifier.citation	Org. Biomol. Chem. 7(9), 2009, 1858-1867	en
dc.identifier.uri	http://hdl.handle.net/123456789/588
dc.description.abstract	A concise and general route to synthesize new class of [6-5-6] tricyclic core embedded polyheterocycles has been accomplished using diastereoselective Nazarov cyclization with an overall yield of 35-40%. Versatility of this synthetic route has also been demonstrated by accessing a variety of [6-5-5] tricyclic core incorporated polycycles. It was observed that the efficiency of cyclization depends upon the impact of polarization on the reacting systems. Amongst the various Lewis and Bronsted acids screened for cyclization, Triflic acid was found to be the most effective catalyst.	en
dc.format.extent	187607 bytes
dc.format.mimetype	application/pdf
dc.language.iso	en	en
dc.subject	Taiwania cryptomerioide	en
dc.subject	abeo-abietane	en
dc.subject	taiwaniaquinoids	en
dc.subject	Taiwaniaquinol B	en
dc.subject	[6-5-5] tricyclic	en
dc.subject	Lewis and Bronsted acids	en
dc.title	Application of Nazarov cyclization to access [6-5-6] and [6-5-5]tricyclic core embedded New Heterocycles : An easy entry to structures related to Taiwaniaquinoids	en
dc.type	Article	en