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The mediation of aryl ketone deuteration by [Ir(PPh3)3(cod)]+.BF4−

✍ Scribed by John M. Herbert

Publisher
John Wiley and Sons
Year
2005
Tongue
French
Weight
114 KB
Volume
48
Category
Article
ISSN
0022-2135

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✦ Synopsis

The usefulness of the hydrogen isotope exchange catalyst, [Ir(PPh 3 ) 3 (cod)] + .BF 4 À (1), is explored. It appears that isotopic exchange mediated by 1 occurs via a series of complexes in which all three phosphine ligands are retained. The disadvantage of this system is that the catalytic intermediates are necessarily sterically hindered, with the result that the range of substrates for which the system is effective is small.

📜 SIMILAR VOLUMES

Ligand effects upon deuterium exchange i
Ligand effects upon deuterium exchange in arenes mediated by [Ir(PR3)2(cod)]+.BF4−
✍ George J. Ellames; Jennifer S. Gibson; John M. Herbert; William J. Kerr; Alan H. 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 French ⚖ 184 KB

## Abstract A series of complexes of general form [Ir(PR~3~)~2~(cod)]^+^ has been prepared and used, without isolation, to mediate deuteration of a range of model substrates. The data suggest that, with many substrates, basicity of the phosphine ligands bound to iridium is an important factor influ

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✍ V. Herrera; B. Muñoz; V. Landaeta; N. Canudas 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 168 KB

The regioselective hydrogenation of some imines to the corresponding amines is efficiently catalyzed by [Ir(COD)(PPh 3 ) 2 ]PF 6 (1) and [Rh(COD)(PPh 3 ) 2 ]PF 6 (2) at 60 • C and 200 psi of H 2 . The kinetics of the hydrogenation of N-(␤-naphthyl methylene) aniline (N␤NA) with [Ir(COD)(PPh 3 ) 2 ]P