76494-96-7Relevant articles and documents
Preparative and structural chemistry of chiral 3-(diphenylphosphanyl)pyrrolidines and their palladium(II) complexes
Nagel, Ulrich,Nedden, Hans Guenter
, p. 385 - 397 (2007/10/03)
The preparation of both enantiomers of 3-diphenylphosphanylpyrrolidine (2) and several N-substituted derivatives together with two Pd complexes of this ligand is reported. From L-malic acid and L-hydroxyproline both enantiomers of 3-hydroxypyrrolidine are prepared without any problems due to epimerization. KPPh2 in the presence of LiCl is shown to be the most effective reagent for the synthesis of 2. The reported X-ray structure determinations of PdI2 complexes show a rather rigid bicyclic hetero-norbornane skeleton. The flexibility of the other parts of the molecules is obvious in several polymorphs revealed by this method. This polymorphism is additionally investigated by a 31P-CP-MAS study. From solution 'H-, 13C- and 31P-NMR studies it is concluded that the bicyclic hetero-norbornane skeleton is retained in solution. VCH Verlagsgesellschaft mbH.
Synthesis of optically active 2-methyl- and 2-ethyl-1,6-dioxaspiro[4.4]nonane- and -[4.5]decane pheromones from a common chiral precursor
Hungerbuhler,Naef,Wasmuth,et al.
, p. 1960 - 1970 (2007/10/02)
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