✦ LIBER ✦
Oxidative Addition of α-Bromoglycine to Palladium(0) and Platinum(0) Complexes: α-Metallated Amino Acids as Models for Intermediates in the Metal-Catalyzed Hydrogenation of Dehydroamino Acids
✍ Scribed by Bernd Kayser; Christopher Missling; Jörg Knizek; Heinrich Nöth; Wolfgang Beck
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 571 KB
- Volume
- 1998
- Category
- Article
- ISSN
- 1434-1948
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✦ Synopsis
Oxidative addition of methyl N-benzoyl-2-bromoglycinate to complexes [(bpy)PdϪCH(CO 2 Me)NHC(Ph)O] + (1b,c) and [(Ph 3 P) 2 PtϪCH(CO 2 Me)NHC(Ph)O] + (2b), respectively, fea-bis(dibenzylideneacetone)palladium, in the presence of 2,2Јbipyridyl, and to (Ph 3 P) 2 Pt(η 2 -C 2 H 4 ) gives the α-metallated turing coordination of the amide O atom. The complexes 1b and 2b have been characterized by X-ray diffraction. glycine esters 1a and 2a. Abstraction of bromide from 1a, 2a, using AgSbF 6 or AgBF 4 , affords the cationic C,O-chelate