Chiral bisphosphanes

Dahlenburg, Lutz; Kurth, Volker

doi:10.1016/s0020-1693(01)00451-0

Cited by 10 publications

(1 citation statement)

References 45 publications

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“…For applications of nickel complexes to catalytic systems, see: Vicic & Jones (1997); Aré valo & García (2010). For related structures, see: Cañ avera-Buelvas et al (2011); Angulo et al (2003); Dahlenburg & Kurth (2001).…”

Section: Related Literaturementioning

confidence: 99%

[1,2-Bis(diisopropylphosphanyl)ethane-κ²P,P′]dichloridonickel(II)

2011

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In the crystal structure of title compound, [NiCl2(C14H32P2)], the NiII atom lies on a twofold rotation axis and shows a slightly distorted square-planar coordination geometry, with a dihedral angle of 10.01 (8)° between the cis-Cl—Ni—Cl and cis-P—Ni—P planes. There is no significant intermolecular interaction except very weak C—H⋯Cl interactions. The crystal studied was a racemic twin.

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Section: Related Literaturementioning

confidence: 99%

[1,2-Bis(diisopropylphosphanyl)ethane-κ²P,P′]dichloridonickel(II)

2011

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Atropselektive Synthese axial‐chiraler Biaryle

et al. 2005

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Eine rotationsgehinderte und dadurch stereogene Biarylachse ist das strukturell und stereochemisch entscheidende Element einer ständig wachsenden Zahl von Naturstoffen, chiralen Auxiliaren und Katalysatoren. Daher ist es nicht überraschend, dass im letzten Jahrzehnt bedeutende Fortschritte in der asymmetrischen Synthese axial‐chiraler Biaryle erzielt worden sind. Neben dem klassischen Zugangsweg, der direkten Aryl‐Aryl‐Kupplung, sind innovative Konzepte entwickelt worden, in denen die asymmetrische Information in ein schon vorhandenes, aber nicht optisch aktives – symmetrisches oder konfigurativ labiles – Biaryl eingeführt oder eine Aryl‐C‐Einfachbindung stereoselektiv in eine Achse umgewandelt wird. In diesem Aufsatz werden die Strategien nach den zugrunde liegenden Konzepten klassifiziert, und ihre Anwendungsbreite und ihre Beschränkungen werden anhand ausgewählter Beispiele kritisch beurteilt. Ferner werden die Voraussetzungen für das Auftreten von Axialchiralität diskutiert.

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Atroposelective Synthesis of Axially Chiral Biaryl Compounds

et al. 2005

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A rotationally hindered and thus stereogenic biaryl axis is the structurally and stereochemically decisive element of a steadily growing number of natural products, chiral auxiliaries, and catalysts. Thus, it is not surprising that significant advances have been made in the asymmetric synthesis of axially chiral biaryl compounds over the past decade. In addition to the classic approach (direct stereoselective aryl-aryl coupling), innovative concepts have been developed in which the asymmetric information is introduced into a preformed, but achiral-that is, symmetric or configurationally labile-biaryl compound, or in which an aryl--C single bond is stereoselectively transformed into an axis. This Review classifies these strategies according to their underlying concepts and critically evaluates their scope and limitations with reference to selected model reactions and applications. Furthermore, the preconditions required for the existence of axial chirality in biaryl compounds are discussed.

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Chiral bisphosphanes

Cited by 10 publications

References 45 publications

[1,2-Bis(diisopropylphosphanyl)ethane-κ²P,P′]dichloridonickel(II)

[1,2-Bis(diisopropylphosphanyl)ethane-κ²P,P′]dichloridonickel(II)

Atropselektive Synthese axial‐chiraler Biaryle

Atroposelective Synthesis of Axially Chiral Biaryl Compounds

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Chiral bisphosphanes

Cited by 10 publications

References 45 publications

[1,2-Bis(diisopropylphosphanyl)ethane-κ2P,P′]dichloridonickel(II)

[1,2-Bis(diisopropylphosphanyl)ethane-κ2P,P′]dichloridonickel(II)

Atropselektive Synthese axial‐chiraler Biaryle

Atroposelective Synthesis of Axially Chiral Biaryl Compounds

Contact Info

Product

Resources

About

[1,2-Bis(diisopropylphosphanyl)ethane-κ²P,P′]dichloridonickel(II)

[1,2-Bis(diisopropylphosphanyl)ethane-κ²P,P′]dichloridonickel(II)