Abstract
(matrix presented) Retrocycloadditions of 4H-4-alkyl-5-(trialkylsilyloxy)-1,3-dioxins proceed smoothly in refluxing toluene to afford (Z)-2-(trialkylsilyloxy)-2-alkenals with complete stereoselectivity. These enals undergo Sasaki-type [4 + 3] cyclizations with dienes in the presence of Lewis acids, in many instances with excellent regio- and/or stereoselectivity.
Original language | English (US) |
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Pages (from-to) | 3553-3555 |
Number of pages | 3 |
Journal | Organic Letters |
Volume | 3 |
Issue number | 22 |
DOIs | |
State | Published - Nov 1 2001 |
All Science Journal Classification (ASJC) codes
- Biochemistry
- Physical and Theoretical Chemistry
- Organic Chemistry