Abstract
The intramolecular ionic Diels-Alder reaction of α-acetylenic acetals as a precursor of the propargyl cation has been investigated in the presence of Lewis acids and in protic acids. The reaction of diene-tethered α-acetylenic acetals (1-2) with formic acid yielded the regioselective intramolecular ionic Diels-Alder reaction products, bicyclodienal (9) and bicyclodienone (11) derivatives, in good yields.
Original language | English |
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Pages (from-to) | 8154-8156 |
Number of pages | 3 |
Journal | Journal of Organic Chemistry |
Volume | 69 |
Issue number | 23 |
DOIs | |
Publication status | Published - Nov 12 2004 |
Externally published | Yes |
ASJC Scopus subject areas
- Organic Chemistry