Abstract
The use of BF3-OEt2 catalysis in Diels-Alder reactions of 3,4-unsubstituted 1,2-naphthoquinones provides direct access to cistetrahydrophenanthrene derivatives in good to excellent yields (66-99%) without rapid adduct aromatization commonly associated with corresponding thermal processes.
Original language | English |
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Pages (from-to) | 4958-4960 |
Number of pages | 3 |
Journal | Organic Letters |
Volume | 11 |
Issue number | 21 |
DOIs | |
Publication status | Published - 5 Nov 2009 |