THE CHEMOSELECTIVE AND ENANTIOSELECTIVE CYCLOPROPANATION OF POLYENES - CHIRAL AUXILIARY VS CHIRAL REAGENT-BASED APPROACH

Citation
Ab. Charette et al., THE CHEMOSELECTIVE AND ENANTIOSELECTIVE CYCLOPROPANATION OF POLYENES - CHIRAL AUXILIARY VS CHIRAL REAGENT-BASED APPROACH, Tetrahedron letters, 37(44), 1996, pp. 7925-7928
Citations number
15
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
ISSN journal
00404039
Volume
37
Issue
44
Year of publication
1996
Pages
7925 - 7928
Database
ISI
SICI code
0040-4039(1996)37:44<7925:TCAECO>2.0.ZU;2-X
Abstract
The chemo- and enantioselective cyclopropanation of allylic alcohols c ontaining additional olefins was investigated using the dioxaborolane- derived reagent. High chemo- and enantioselectivities were usually obs erved if a mixture of the chiral dioxaborolane ligand/allylic alcohol was treated with a solution of Zn(CH2I)(2) . DME complex. Copyright (C ) 1996 Elsevier Science Ltd