Abstract
The synthesis and intramolecular Diels-Alder reactions of a series of silyl acetal-tethered trienes 4-9 are described. The cycloadditions show complete regioselectivity, and in all but one case give exclusively cis-fused bicyclic products. The selectivities are rationalised in terms of stereoelectronic and steric effects.
Original language | English |
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Pages (from-to) | 11601-11622 |
Number of pages | 22 |
Journal | Tetrahedron |
Volume | 51 |
Issue number | 42 |
Publication status | Published - 16 Oct 1995 |
Keywords
- POLAR TRANSITION-STATE
- CYCLO-ADDITIONS
- CYCLOADDITIONS
- DIENOPHILE
- 1,2,4-TRIAZINES
- SUBSTITUENTS
- SELECTIVITY
- PYRIDINES
- DIENES
- ETHER