Title of article
Assembled catalysts of titanium and non-cross-linked chiral copolymers for an enantioselective carbonyl-ene reaction
Author/Authors
Yamada، نويسنده , , Yoichi M.A. and Ichinohe، نويسنده , , Masato and Takahashi، نويسنده , , Hideyo and Ikegami، نويسنده , , Shiro، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2002
Pages
4
From page
3431
To page
3434
Abstract
New insoluble chiral catalysts were prepared from a self-assembly of Ti(O-i-Pr)4 and non-cross-linked copolymers with (R)-binaphthol (BINOL) pendant groups. In the presence of one of the chiral catalysts, an enantioselective carbonyl-ene reaction proceeded at room temperature to give an adduct in 85% yield with 88% ee. This insoluble assembled catalyst was easily prepared and reusable.
Keywords
Asymmetric reactions , Polymer support , SELF-ASSEMBLY , titanium and compounds , ene reactions
Journal title
Tetrahedron Letters
Serial Year
2002
Journal title
Tetrahedron Letters
Record number
1651515
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