Title of article
Antimony pentachloride catalyzed Diels–Alder reactions: improved regioselectivity in the synthesis of dialkyl naphthoquinones
Author/Authors
Nunes، نويسنده , , Ruth Leandro and Bieber، نويسنده , , Lothar Wilhelm، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2001
Pages
3
From page
219
To page
221
Abstract
Improved regioselectivity in catalyzed Diels–Alder (DA) cycloadditions between non-symmetrical benzoquinones and mono-substituted butadienes is achieved by use of SbCl5. After oxidation, good yields of dialkylnaphthoquinones are obtained. The greater steric demand in comparison to other Lewis acids (LAs) seems to favor the less hindered transition state.
Keywords
Antimony pentachloride , regioselectivity , Benzoquinones , Diels–Alder reactions
Journal title
Tetrahedron Letters
Serial Year
2001
Journal title
Tetrahedron Letters
Record number
1641029
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