Abstract : A variety of a-branched alkynes can be easily assembled by a Knoevenagel type condensation of 4-unsubstituted isoxazolin-5-ones with aldehydes or ketones, followed by conjugate addition of an organometallic reagent and nitrosative cleavage of the heterocyclic ring.
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https://hal-polytechnique.archives-ouvertes.fr/hal-00954845
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Submitted on : Tuesday, March 18, 2014 - 8:55:27 PM
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Delphine Renard, Hadi Rezaei, Samir Zard. A new convergent approach to α-branched alkynes. SYNLETT, Georg Thieme Verlag, 2002, pp.1257-1260. ⟨10.1055/s-2002-32956⟩. ⟨hal-00954845⟩
