Reactions of p-Hydroxyphenylphosphine and Functionally Substituted Bis(hydroxymethyl)phosphines with Heterocumulenes

Synthesis, structure, and transition metal complexes of amphiphilic 1,5‐diaza‐3,7‐diphosphacyclooctanes

“…The Mannich-type condensation of phosphines appears to be a powerful method of constructing heterocyclic bisphosphines and macroheterocyclic tetraphosphine ligands for transition metal coordination chemistry [5][6][7]. During the last decade, chiral [8], unsaturated [9], ferrocenylmethyl [10], o-oxyphenyl [11,12], phosphinomethyl [13], and amino acid [14] fragments have been incorporated into bisphosphine ligands to give a number of asymmetric [8], polymetallic [10], water-soluble [10,11,12,14,15] and chelate [16][17][18][19] transition metal complexes. A wide variety of substituents on the phosphorus and nitrogen atoms open the opportunity for ligand design and preparation of tailor-made complexes.…”

Pt‐ and Pd‐Complexes with Acyclic and Heterocyclic P‐Hydroxyaryl‐Substituted N‐Phosphanylmethyl Amino Acids RP(CH2NHR')2 and (RPCH2NR'CH2)2 – Evaluation of (P^O)M Chelate Formation

“…The synthesis of the ligands 1a-c and 6 was reported earlier; [3d] p-HOC 6 H 4 PH 2 and p-HOC 6 H 4 P(CH 2 OH) 2 . [19] Pt(cod)Cl 2 and Pd(cod)Cl 2 were prepared by known procedures. [27] NMR spectra were measured using a multinuclear FT-NMR spectrometer ARX300 (Bruker) at 300.13 ( 1 H), 75.47 ( 13 C), and 121.49 ( 31 P) MHz unless indicated otherwise.…”

“…General: All reactions were carried out under argon, using Schlenk techniques. The synthesis of the ligands 1a – c and 6 was reported earlier;[3d] p ‐HOC 6 H 4 PH 2 and p ‐HOC 6 H 4 P(CH 2 OH) 2 . Pt(cod)Cl 2 and Pd(cod)Cl 2 were prepared by known procedures .…”

“…For comparison of the coordination behavior, properties, and spectroscopic data an analogous p-hydroxyphenyl-substituted P-C-N amino acid was included in the investigation. Compound 13 was prepared from p-hydroxyphenylphosphane, [19] formaldehyde, and p-aminobenzoic acid. It was isolated in good yield (63 %), formed a water-soluble potassium salt with KOH and reacted with Pt(cod)Cl 2 to give complex 14 (56 %) (Scheme 3).…”

Phosphines and Related Tervalent Phosphorus Systems

“…621 The reactions of p-hydroxyphenylphosphine and various substituted arylbis(hydroxymethyl)phosphines with heterocumulenes have also been explored. 622 Borane reduction of the carbonyl group of o-diphenylphosphino(N-2-hydroxyethyl)benzamide has given the related N-functionalised o-diphenylphosphinobenzylamine, from which new rhenium complexes have been prepared. 623 A new route to optically active phosphapalladocycles is afforded by the asymmetric exchange of enantiopure cyclopalladated chiral amines with prochiral phosphines.…”