Synthesis of eta(6)-(4a-methyl-1,2,3,4-tetrahydro-4aH-carbazole)tricarbonylchromium complex and stereoelectronic behaviour with organolithium reagents: an apparent frontal attack to the (CO)(3)Cr group

Citation
Jg. Rodriguez et al., Synthesis of eta(6)-(4a-methyl-1,2,3,4-tetrahydro-4aH-carbazole)tricarbonylchromium complex and stereoelectronic behaviour with organolithium reagents: an apparent frontal attack to the (CO)(3)Cr group, J HETERO CH, 38(5), 2001, pp. 1191-1196
Citations number
24
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
JOURNAL OF HETEROCYCLIC CHEMISTRY
ISSN journal
0022-152X → ACNP
Volume
38
Issue
5
Year of publication
2001
Pages
1191 - 1196
Database
ISI
SICI code
0022-152X(200109/10)38:5<1191:SOE>2.0.ZU;2-W
Abstract
The synthesis of eta (6)-(4a-methyl-1,2,3,4-tetrahydro-4aH-carbazole)tricar bonylchromium (3) is described and its reactivity with organolithium reagen ts have been analysed. The addition of RLi (R= H, Me, n-Bu, tert-Bu) to 3 a ffords the corresponding endo/exo tricarbonylchromium complexes of cis-4a-m ethyl-9a-substituted- 1,2,3,4-tetrahydro-4aH-carbazole, which permit the co nsideration of the stereoelectronic behaviour of the tricarbonylchromium gr oup on 4a-methyl and the 9a substituent or on the methylenes of the cyclohe xene moiety in the complexes.