847654-05-1Relevant articles and documents
Bis-glycinato complexes of palladium(II): Synthesis, structural determination, and hydrogen bonding interactions
Hobart Jr., David B.,Berg, Michael A.G.,Merola, Joseph S.
, p. 21 - 30 (2014/12/09)
Palladium(II) acetate and palladium(II) chloride react with glycine and glycine derivatives in acetone/water to yield square planar bis-chelated palladium amino acid complexes. Glycine, N-methylglycine and N,N-dimethylglycine all adopt the trans configuration when prepared from palladium(II) acetate, whereas glycine adopts a cis configuration when prepared from palladium(II) chloride. The crystal structures of all four complexes were obtained. The extended lattice structures arise from N-H··O or O··(HOH)··O hydrogen bonding. Nuclear magnetic resonance, infrared, high resolution mass spectroscopy, and UV-Vis spectroscopic data are evaluated.
Mapping the mechanism of nickel-ferrophite catalysed methylation of baylis-hillman-derived SN2′ electrophiles
Novak, Andrew,Calhorda, Maria Jose,Costa, Paulo Jorge,Woodward, Simon
experimental part, p. 898 - 903 (2009/07/19)
Enantioselective Ni-catalysed methylation of Baylis-Hillman-derived allylic electrophiles in the presence of ferrophite ligands has been investigated computationally and experimentally. The sense and degree of enantioselectivity attained is independent of both the leaving group and the isomeric structure of the initial allylic halide. DFT studies support the selective formation of a limited number of energetically favoured anti and syn π-allyl intermediates. The observed regio- and enantioselectivity can be rationalised based on the energetics of these structures.
Expedient synthesis of β,β-disubstituted α- methylenepropionates
Biswas, Kallolmay,B?rner, Christoph,Gimeno, Josepe,Goldsmith, Paul J.,Ramazzotti, Daniella,So, Angela L.K.,Woodward, Simon
, p. 1433 - 1442 (2007/10/03)
Baylis-Hillman alcohols are excellent sources of the allylic halides ArCHCH(CH2X)(CO2R) (X=Br, Cl; R1=Me, Et, But). The Z double bond isomers are attained in high isomeric purity (>14:1, Z/E). The halides are ch
