Title of article
Ytterbium triflate-catalyzed conjugate addition of β-ketoesters to activated 1,4-naphthoquinones
Author/Authors
Naga Venkata Sastry Mudiganti، نويسنده , , Sven Claessens، نويسنده , , Norbert De Kimpe، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2009
Pages
8
From page
1716
To page
1723
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.
Journal title
Tetrahedron
Serial Year
2009
Journal title
Tetrahedron
Record number
1095141
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