Coordination chemistry of hydrophosphorane compounds

Gavrilov, K. N.; Mikhel, I. S.

doi:10.1070/rc1996v065n03abeh000208

Cited by 19 publications

(6 citation statements)

References 69 publications

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“…Phosphorus(V) species, such as hydrophosphoranes (HPR4), found their own niche in the chemistry of coordination compounds and catalysis [31] due to their unique binding modes and high activities. Some spirobicyclic hydrophosphoranes undergo ring-opening tautomerism, resulting in P(III) species.…”

Section: Already Reported P-ligandsmentioning

confidence: 99%

Rh(I) Complexes in Catalysis: A Five-Year Trend

et al. 2021

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Rhodium is one of the most used metals in catalysis both in laboratory reactions and industrial processes. Despite the extensive exploration on “classical” ligands carried out during the past decades in the field of rhodium-catalyzed reactions, such as phosphines, and other common types of ligands including N-heterocyclic carbenes, ferrocenes, cyclopentadienyl anion and pentamethylcyclopentadienyl derivatives, etc., there is still lively research activity on this topic, with considerable efforts being made toward the synthesis of new preformed rhodium catalysts that can be both efficient and selective. Although the “golden age” of homogeneous catalysis might seem over, there is still plenty of room for improvement, especially from the point of view of a more sustainable chemistry. In this review, temporally restricted to the analysis of literature during the past five years (2015–2020), the latest findings and trends in the synthesis and applications of Rh(I) complexes to catalysis will be presented. From the analysis of the most recent literature, it seems clear that rhodium-catalyzed processes still represent a stimulating challenge for the metalloorganic chemist that is far from being over.

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Section: Already Reported P-ligandsmentioning

confidence: 99%

Rh(I) Complexes in Catalysis: A Five-Year Trend

et al. 2021

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“…However, it is these compounds that show a variety of types of bonding to metal ions, namely, the P-, N-, P,N-, P,O-and N,N-coordination. Coordination chemistry of HPs has been analysed in detail in a separate review; 130 however, since then new information on complexation and catalysis involving chiral HPs has been reported. This first of all concerns hydrospirophosphoranes (HSPs) 78 and tricyclic hydrophosphoranes (TCHPs).…”

Section: Hydrophosphorane Ligandsmentioning

confidence: 99%

“…Here, two mechanisms are possible, one with and one without involvement of the P(III) tautomers of HPs. 130 In the former case, the role of the transition metal is in essence to shift the tautomeric equilibrium P(V) > P(III) by bonding to the structure with the tricoordinate phosphorus atom. The latter case is in fact a kind of metal complex catalysis of the opening of the hydrophosphorane structure.…”

Section: Hydrophosphorane Ligandsmentioning

confidence: 99%

Chiral phosphites as ligands in asymmetric metal complex catalysis and synthesis of coordination compounds

Gavrilov¹,

Bondarev²,

Polosukhin³

2004

Russ. Chem. Rev.

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AlGaN/GaN/Si metal-insulator-semiconductor heterostructure field-effect transistors (MISHFETs) with SiN and Al 2 O 3 gate insulators are characterized by static and high-frequency measurements, and their performance is compared with nonpassivated and SiN-passivated heterostructure field-effect transistors (HFETs). The saturation drain current increased from ∼500 mA mm −1 for the HFETs to ∼770 mA mm −1 for the MISHFETs. The peak extrinsic transconductance of the MISHFETs (147 mS mm −1 for 8 nm SiN and 220 mS mm −1 for 4 nm Al 2 O 3 ) is higher than expected due to the increased gate-to-channel separation. Similarly, small signal microwave characterization yielded an increase in the current gain cut-off frequency (from 3.2 to 7.2 GHz) and the maximum frequency of oscillation (from 12.3 to 20.4 GHz) for the MISHFETs with 2 μm gate length compared to the HFET counterparts. Finally, the density of trap states, evaluated from the frequency-dependent conductance measurements, was ∼ =3 × 10 12 cm −2 eV −1 for the HFETs but only ∼ =1.8 × 10 12 cm −2 eV −1 for the MISHFETs. All of these demonstrate the capability of AlGaN/GaN MISHFETs of preparing high-performance and cost-effective devices for high-power microwave applications on a Si substrate.

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“…The main studies dealing with the complexation of chiral hydrophosphoranes have been surveyed in several publications. 155,170,171 Therefore, here we shall consider only the tricyclic hydrophosphorane 136, prepared not long ago. 172 The reaction of this compound with Pd(COD)Cl 2 gave the first stable palladated phosphorane 137 (in an almost quantitative yield).…”

Section: -Xc6h4ch Nchch2pph2mentioning

confidence: 99%

Chiral P,N-bidentate ligands in coordination chemistry and organic catalysis involving rhodium and palladium

Gavrilov¹,

Polosukhin²

2000

Russ. Chem. Rev.

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Published data on the synthesis of rhodium and palla-Published data on the synthesis of rhodium and palladium complexes with optically active P,N-bidentate ligands and dium complexes with optically active P,N-bidentate ligands and their applications in homogeneous asymmetric catalysis are their applications in homogeneous asymmetric catalysis are summarised and discussed. The effect of the nature of the P,N-summarised and discussed. The effect of the nature of the P,Nbidentate compounds on the structure of the metal complexes and bidentate compounds on the structure of the metal complexes and on enantioselectivity in catalysis is examined. Allylic substitution, on enantioselectivity in catalysis is examined. Allylic substitution, cross-coupling, hydroboration and hydrosilylation catalysed by cross-coupling, hydroboration and hydrosilylation catalysed by Rh or Pd complexes with optically active P,N-bidentate ligands Rh or Pd complexes with optically active P,N-bidentate ligands are considered. The prospects for the development of this field of are considered. The prospects for the development of this field of chemistry are demonstrated. The bibliography includes 186 refer-chemistry are demonstrated. The bibliography includes 186 references ences. .

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Coordination chemistry of hydrophosphorane compounds

Cited by 19 publications

References 69 publications

Rh(I) Complexes in Catalysis: A Five-Year Trend

Rh(I) Complexes in Catalysis: A Five-Year Trend

Chiral phosphites as ligands in asymmetric metal complex catalysis and synthesis of coordination compounds

Chiral P,N-bidentate ligands in coordination chemistry and organic catalysis involving rhodium and palladium

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