Nicholas Reactions of Alkynyl- and Alkenyltrifluoroborates
The Lewis acid mediated Nicholas reaction of potassium alkynyltrifluoroborates and propargyl acetate-hexacarbonyldicobalt complexes affords 1,4-diyne dicobalt hexacarbonyl complexes in good yields. The analogous Nicholas reactions of potassium alkenyltrifluoroborates give 1,3-enyne dicobalt hexacarbonyl complexes in most cases, although the initial site of reaction can vary. Potassium vinyltrifluoroborate itself affords alkynylcyclopropane complexes.
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2019 ◽
Vol 17
(37)
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pp. 8522-8526
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1986 ◽
Vol 108
(11)
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pp. 3128-3130
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