
Tetrahedron Letters p. 4197 - 4200 (1985)
Update date:2022-08-05
Topics:
Alexakis, A.
Mangeney, P.
Normant, J. F.
Chiral alkoxy-allenes are obtained by reaction of chiral acetylenic acetals with Grignard regents in the presence of catalytic amount of copper salt.The crucial step is a highly diastereoselective β-elimination reaction of the transient alkenyl organometa
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