PROTONATION OF AN INTERNAL ALKYNE PRODUCES A TERMINAL ALKENE - REACTIVITY OF [MO(ETA(2)-MECCME)(PH(2)PCH(2)CH(2)PPH(2))(2)]

Authors
DAVIES SC HENDERSON RA HUGHES DL OGLIEVE KE
Citation
Sc. Davies et al., PROTONATION OF AN INTERNAL ALKYNE PRODUCES A TERMINAL ALKENE - REACTIVITY OF [MO(ETA(2)-MECCME)(PH(2)PCH(2)CH(2)PPH(2))(2)], Chemical communications, (17), 1996, pp. 2039-2040
Citations number
9
Categorie Soggetti
Chemistry
Journal title
Chemical communications → ACNP
ISSN journal
13597345
Issue
17
Year of publication
1996
Pages
2039 - 2040
Database
ISI
SICI code
1359-7345(1996):17<2039:POAIAP>2.0.ZU;2-3
Abstract
Structurally defined [Mo(eta(2)-MeCCMe)(Ph(2)PCH(2)CH(2)PPh(2))(2)] re acts with anhydrous HCl in thf to give predominantly trans-[MoCl2(Ph(2 )PCH(2)CH(2)PPh(2))(2)] with but-1-ene (69 +/- 6%) and cis-but-2-ene ( 10 +/- 2%); in addition, some [MoH2Cl2(Ph(2)PCH(2)CH(2)PPh(2))(2)] and but-2-yne (21 +/- 5%) are produced; the mechanistic features by which protonation of an internal alkyne yields a terminal alkene are enumer ated.