Title of article
Cyclization of alkynoic acids with gold catalysts: a surprising dichotomy between AuI and AuIII
Author/Authors
Hassina Harkat، نويسنده , , Albert Yénimégué Dembelé، نويسنده , , Jean-Marc Weibel، نويسنده , , Aurélien Blanc، نويسنده , , Patrick Pale، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2009
Pages
9
From page
1871
To page
1879
Abstract
ω-Acetylenic acids, substituted or not at their acetylenic end, could be efficiently cyclized to γ- or δ-alkylidene lactones in the presence of AuCl and K2CO3. In contrast AuCl3 led to lactone dimers, probably through cyclization and reductive dimerization. These AuI and AuIII catalyzed cyclizations were totally regioselective and most often highly stereoselective.
Journal title
Tetrahedron
Serial Year
2009
Journal title
Tetrahedron
Record number
1095158
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