Titelaufnahme
- TitelC 1 - und C 2 -symmetrische zweizähnige chirale Phosphane mit starrem Rückgrat / angefertigt von Uwe Kühner
- Beteiligte
- Erschienen
- Umfang1 Computerdatei (ca. 1,24 MB) : Auszüge (Titel, Abstract, Abkürzungsverzeichnis, Inhaltsverzeichnis, ca. 107 KB)
- HochschulschriftWuppertal, Univ., Diss.
- SpracheDeutsch
- DokumenttypDissertation
- URN
- Das Dokument ist frei verfügbar
- Social MediaShare
- Nachweis
- Archiv
- IIIF
English
Novel chiral C₁- and C₂-symmetric chelating phosphine catalyst-ligands with rigid aromatic backbones (1,2-phenylene and 1,8-naphthalene) were developed and checked by both allylic Pd-catalysed stereoselective substitution and Rh(I)-catalysed hydrogenation reaction. Furthermore, 1,2-bisphosphinoacenaphtylenes and -acenaphtenes were synthesized. Chiral C₁-symmetric 1-diphenylphosphino-2-phospholanobenzenes were obtained by consecutive metallation and alkylation of the novel 1-diphenylphosphino-2-phosphinobenzene. A chiral C₂-symmetric P,P-ligand was synthesized by twofold lithiation of 1,8-dibromonaphthaline and subsequent reaction with the chiral (2R,5R)-1-chloro-2,5-dimethylphospholane. P,N-ligands bearing either chiral phospholane or chiral phosphetane moieties were obtained from the novel primary 1-dimethylamine-8-phosphinonaphthaline by consecutive metallation and alkylation. Various P,N-ligands containing a chiral (2R,5R)-2,5-dimethylpyrrolidine moiety were accessible from the novel 1-bromo-8-((R,R)-α’-dimethylpyrrolidino)naphthalene by lithiation and subsequent phosphination with various chlorophosphines. 1,2-bisphosphinoacenaphthylenes were synthesized by twofold lithiation-phosphination of 1,2-dibromoacenaphthylene with the corresponding chlorophosphines. Reduction of bis(diphenylphospino)acenaphthylene with zinc in acetic acid afforded cis-bis(diphenylphosphino)acenaphthene.
- Das PDF-Dokument wurde 19 mal heruntergeladen.