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Total Synthesis of Vinigrol

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posted on 02.12.2009, 00:00 by Thomas J. Maimone, Jun Shi, Shinji Ashida, Phil S. Baran
The longstanding challenge posed by the complex diterpene vinigrol has been answered for the first time. The notorious difficulty in synthesizing vinigrol stems from its unprecedented decahydro-1,5-butanonaphthalene ring system, eight contiguous stereocenters, and highly congested functionality. This Communication delineates a stereocontrolled 23-step route to vinigrol that is scalable (>5 g prepared of a late-stage intermediate), minimally reliant on protecting group chemistry, and facilitated by a number of unique and chemoselective transformations.

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