Title of article
Interaction of t-butyllithium and triphenylmethylenephosphoranes
Author/Authors
Korth، نويسنده , , Karsten and Sundermeyer، نويسنده , , Jِrg، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2000
Pages
4
From page
5461
To page
5464
Abstract
NMR experiments show that a directed ortho-metalation occurs at one of the aromatic rings of triphenylmethylenephosphoranes (Ph3P-CHR, R=H, Me) when the phosphorus ylide is treated with 1 equiv. t-BuLi. If pre-coordination of t-BuLi is inhibited by a sterically demanding and electron-withdrawing substituent (R=SiMe3) no metalation is observed.
Keywords
NMR data , lithiation , ylides , Phosphoranes
Journal title
Tetrahedron Letters
Serial Year
2000
Journal title
Tetrahedron Letters
Record number
1638230
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