A simple route to thiacrowns. Catalytic macrocyclization of thiirane by cationic manganese carbonyl complexes

Citation
Rd. Adams et al., A simple route to thiacrowns. Catalytic macrocyclization of thiirane by cationic manganese carbonyl complexes, INORG CH C, 4(11), 2001, pp. 671-673
Citations number
27
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
INORGANIC CHEMISTRY COMMUNICATIONS
ISSN journal
1387-7003 → ACNP
Volume
4
Issue
11
Year of publication
2001
Pages
671 - 673
Database
ISI
SICI code
1387-7003(200111)4:11<671:ASRTTC>2.0.ZU;2-7
Abstract
Thiirane is transformed catalytically into the symmetric thiacrowns: 1,4.7, 10-tetrathiacyclododecane, 12S4, 1,4.7,10,13-pentathiacyclopentadecane, 15S 5; and 1,4,7.10.13,16-hexathiacyclooctadecane, 18S6, when treated with the manganese carbonyl monocations: [Mn(CO)(4) (L) (NCMe)](+), L =CO, PPh3, PMe 2Ph and PEt3 at room temperature. 12S4 is the major thiacrown product. Cons iderable amounts of polymer are also formed. The phosphine-substituted cata lysts are considerably more active and give better yields of the thiacrowns than the parent carbonyl, but they also give more polymer side product. (C ) 2001 Elsevier Science B.V. All rights reserved.