Title of article
Direct formation of cyclobutenylphosphonates from 1-alkynylphosphonates and Cp2ZrCl2/2EtMgCl/2CuCl
Author/Authors
Sinelnikove، نويسنده , , Yulia and Rubinstein، نويسنده , , Abraham and Srebnik، نويسنده , , Morris and Quntar، نويسنده , , Abed Al Aziz Al Quntar، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2009
Pages
3
From page
867
To page
869
Abstract
Zirconacycles 2 prepared from 1-alkynylphosphonates 1, zirconocene dichloride, and 2 equiv of EtMgCl are smoothly converted into cyclobutenylphosphonates 3 when treated with two equiv of CuCl in 65–81% isolated yield. The reaction is specific and general only for zirconacyclopentenyl phosphonates.
Keywords
Alkynylphosphonates , Diethylzirconocene , Copper chloride , cyclization , Cyclobutenylphosphonates
Journal title
Tetrahedron Letters
Serial Year
2009
Journal title
Tetrahedron Letters
Record number
1862682
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