PLANAR CHIRAL C-2-SYMMETRICAL BISFERROCENES - STEREOSELECTIVE PINACOLCOUPLING OF ALPHA-SUBSTITUTED FERROCENECARBOXALDEHYDES

Citation
N. Taniguchi et M. Uemura, PLANAR CHIRAL C-2-SYMMETRICAL BISFERROCENES - STEREOSELECTIVE PINACOLCOUPLING OF ALPHA-SUBSTITUTED FERROCENECARBOXALDEHYDES, Tetrahedron letters, 39(30), 1998, pp. 5385-5388
Citations number
17
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
ISSN journal
00404039
Volume
39
Issue
30
Year of publication
1998
Pages
5385 - 5388
Database
ISI
SICI code
0040-4039(1998)39:30<5385:PCCB-S>2.0.ZU;2-7
Abstract
Planar chiral alpha-substituted ferrocenecarboxaldehydes were treated with samarium diiodide to give stereoselectively pinacol coupling prod ucts with a threo-configuration in good yields. The resulting dihydrox yl of the product was substituted with stereochemical inversion by an S(N)l reaction. (C) 1998 Elsevier Science Ltd. All rights reserved.