Studies on the synthetic utility of [6+3] cycloaddition of pentafulvenes with 3-oxidopyrylium betaines: efficient synthesis of fused ring cyclooctanoids
By Krishnan, K. Syam; Smitha, Mohanlal; Suresh, E.; Radhakrishnan, K. V.
From Tetrahedron (2006), 62(52), 12345-12350.
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http://dx.doi.org/10.1016/j.tet.2006.09.102