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Allylstannation of N-Acyliminium Intermediates: A Possible Method for the Stereocontrolled Synthesis of Polyhydroxypiperidines.

โœ Scribed by Floris Chevallier; Isabelle Beaudet; Erwan Le Grognec; Loic Toupet; Jean-Paul Quintard

Publisher
John Wiley and Sons
Year
2004
Weight
144 KB
Volume
35
Category
Article
ISSN
0931-7597

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## Abstract The allylstannation of Nโ€acyliminium intermediates affords the expected adducts with high synโ€selectivity.

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Stereocontrolled route to a key intermediate for the synthesis of maytansine
โœ E.J. Corey; Mark G. Bock ๐Ÿ“‚ Article ๐Ÿ“… 1975 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 210 KB

We have undertaken a synthesis of this substance as part of a broader program in the area of biologically active macrocyclic natural products. One attractive approach to the synthesis of maytansine involves the introduction of chiraltty at carbons 3, 4, 5, 10, and 9 after formation of the macro ring