Synthesis of cyclophanic chromium(0) bis(carbene) complexes

Authors
Fernandez, I Sierra, MA Mancheno, MJ Gomez-Gallego, M Ricart, S
Citation
I. Fernandez et al., Synthesis of cyclophanic chromium(0) bis(carbene) complexes, ORGANOMETAL, 20(21), 2001, pp. 4304-4306
Citations number
33
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
ORGANOMETALLICS
ISSN journal
02767333 → ACNP
Volume
20
Issue
21
Year of publication
2001
Pages
4304 - 4306
Database
ISI
SICI code
0276-7333(20011015)20:21<4304:SOCCBC>2.0.ZU;2-8
Abstract
Double Michael addition of 1,4- and 1,3-xylylene diamines and 1,5-diaminobu tane to the bimetallic alpha,beta -unsaturated alkoxychromium(0) carbene co mplex 4 produces in good to excellent yields the corresponding cyclophane b imetallic complexes 5-7 as single isomers. In contrast, the reaction with 1 ,4-diaminobutane produces a different cyclophane complex, 8, derived from a 1,2- + 1,4-addition process.