Bismuth-catalyzed Intramolecular Hydro-oxycarbonylation of Alkynes
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Bi(OTf)<SUB>3</SUB> was found to be a good catalyst for intramolecular addition of carboxylic acids to alkynes (hydro-oxycarbonylation), which afforded the corresponding 5- and 6-membered lactones in moderate to good yields under mild conditions.
- Chemistry Letters
Chemistry Letters 37(6), 602-603, 2008-06-05
The Chemical Society of Japan