| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5227120 | Tetrahedron | 2009 | 8 Pages |
Abstract
An efficient procedure for the conjugate addition of various β-ketoesters to activated 1,4-naphthoquinones using a catalytic amount of Yb(OTf)3 was developed. The tri-, tetra-, and pentacyclic adducts were obtained in very good to excellent yield. Cyclic β-ketoesters added smoothly to activated quinones when compared to their acyclic counterparts.
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Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Naga Venkata Sastry Mudiganti, Sven Claessens, Norbert De Kimpe,