Abstract
A biomimetic total synthesis of santalin Y, a structurally complex but racemic natural product, is described. The key step is proposed to be a (3+2) cycloaddition of a benzylstyrene to a "vinylogous oxidopyrylium", which is followed by an intramolecular Friedel-Crafts reaction. This cascade generates the unique oxafenestrane framework of the target molecule and sets its five stereocenters in one operation. Our work provides rapid access to santalin Y and clarifies its biosynthetic relationship with other colorants isolated from red sandalwood.
Original language | English (US) |
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Pages (from-to) | 5079-5083 |
Number of pages | 5 |
Journal | Angewandte Chemie - International Edition |
Volume | 54 |
Issue number | 17 |
DOIs | |
State | Published - Apr 20 2015 |
Keywords
- biomimetic synthesis
- dipolar cycloaddition
- polyphenols
- racemic natural products
- total synthesis
ASJC Scopus subject areas
- Catalysis
- General Chemistry