Chemoselectivities in palladium- and rhodium-catalyzed allenyne cyclizations

Citation
Ch. Oh et al., Chemoselectivities in palladium- and rhodium-catalyzed allenyne cyclizations, TETRAHEDR L, 42(49), 2001, pp. 8669-8671
Citations number
31
Categorie Soggetti
Chemistry & Analysis","Organic Chemistry/Polymer Science
Journal title
TETRAHEDRON LETTERS
ISSN journal
00404039 → ACNP
Volume
42
Issue
49
Year of publication
2001
Pages
8669 - 8671
Database
ISI
SICI code
0040-4039(200112)42:49<8669:CIPARA>2.0.ZU;2-X
Abstract
Allenynes exhibited different modes of cyclizations depending on metallic c atalysts. Palladium compounds would catalyze 1,7-allenynes to the correspon ding six-membered carbocycles incorporating a hydrogen or an acetate group depending upon additives used. A rhodium compound catalyzed the cyclization of those allenynes to give the five membered rings chemoselectively. (C) 2 001 Elsevier Science Ltd. All rights reserved.