Tetrahedron Letters p. 1741 - 1744 (1991)
Update date:2022-08-04
Topics:
Hirao
Mikami
Mori
Ohshiro
An oxo group is introduced at the allylic position of 3-methyl-2-cyclopenten-1-one and β-ionone on treatment with VO(OR)Cl2 in ROH. VO(OR)Cl2 induces γ-alkoxylation in the case of 2-cyclopenten-1-one. Reaction of 1-acetyl-1-cyclohexene with VO(OEt)Cl2 results in γ-alkoxylation and/or aromatization to give 1-acetyl-3-ethoxy-1-cyclohexene and the corresponding aromatic.
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(2014)
