Indium(III) Salt Promoted Intramolecular Addition of Allylsilanes to Unactivated Alkynes
- 24 July 2006
- journal article
- letter
- Published by Georg Thieme Verlag KG in Synlett
- Vol. 2006 (12) , 1883-1886
- https://doi.org/10.1055/s-2006-947348
Abstract
In the presence of a stoichiometric or catalytic amount of a Lewis acidic indium(III) salt, allylsilanes reacted intramolecularly with unactivated terminal alkynes to give cyclized products in good to high yields. The fact that the reaction proceeded in a trans-addition mode suggests a reaction mechanism via electrophilic activation of the triple bond by the indium salt.Keywords
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