Coinage Metal Complexes of Phosphonite Analogues of 2‐Diphenylphosphino‐1,1′‐binaphthyl (H‐MOP) and 2‐Diphenylphosphino‐2′‐methoxy‐1,1′‐binaphthyl (MeO‐MOP)

Abstract

Chiral MOP‐phosphonites containing two phenoxy substituents (S)‐1a/(R)‐1b, a biphenoxy group (S)‐2a/(R)‐2b or the 3,3′‐dimethylbiphenoxy group (S)‐3a/(R)‐3b, have been coordinated to the coinage metals. Six [Au(LP)Cl] complexes have been prepared and five were characterised by X‐ray crystallography, as well as complex [Au{(S)‐3a}2]SbF6. Six [Ag(LP)OTf] complexes were synthesised, studied by VT NMR spectroscopy and, in the case of [Ag{(R)‐2b}OTf], by X‐ray crystallography. Six [Cu(LP)(MeCN)2]PF6 complexes were prepared, and [Cu{(R)‐3b}(MeCN)2]PF6 was characterised crystallographically, as was the decomposition product [Cu{(S)‐1a}(O2PF2)]2.

DFT study on the structure and racemization mechanism of 2‐amino‐2′‐hydroxy‐1,1′‐binaphthyl

“…The most representative compound including 1,1′‐binaphthalene‐2,2′‐diol (referred to as 2,2′‐BINOL), 1,1′‐binaphthalene‐8,8′‐diol (referred to as 8,8′‐BINOL), and 1,1′‐ Binaphthalene‐2,2′‐diamine (referred to as BINAM), which have been studied theoretically by some relevant scholars. In recent years, it has been found the two‐dentate ligand without C 2 symmetry factors, such as 2‐amino‐2′‐hydroxy‐1,1′‐binaphthyl (denoted as NOBIN hereafter), is also an excellent chiral ligand . Its molecular structure and its carbon composition are as follows.…”

Unexpected Macrocyclic Multinuclear Zinc and Nickel Complexes that Function as Multitasking Catalysts for CO2 Fixations

“…In other words,t hey are complex@complex structures.T his type of structure is unprecedented, although many multinuclear metal complexes with binaphthyl-based ligands have been reported. [9] Furthermore,t he complexes exhibited high catalytic activities for distinct CO 2 fixations: 1) synthesis of cyclic carbonates from epoxides and CO 2 and 2) N-formylation/N-methylation of amines with CO 2 and hydrosilane.T his is the first example of multitask catalysts for the CO 2 fixations.…”

Unexpected Macrocyclic Multinuclear Zinc and Nickel Complexes that Function as Multitasking Catalysts for CO2 Fixations

“…[9] Furthermore,t he complexes exhibited high catalytic activities for distinct CO 2 fixations: 1) synthesis of cyclic carbonates from epoxides and CO 2 and 2) N-formylation/N-methylation of amines with CO 2 and hydrosilane.T his is the first example of multitask catalysts for the CO 2 fixations. These structures were surprising because we originally expected the formation of simple acyclicd inuclear complexes such as M 2 L(OAc) 2 .T he complexes 2 and 3 comprise an outer ring (M 3 L 3 )and an inner core (M 2 or M).…”