A hexadentate Schiff base ligand which undergoes reversible, diastereoselective addition of methanol

Constable, Edwin C.; Zhang, Guoqi; Housecroft, Catherine E.; Neuburger, Markus

doi:10.1016/j.molstruc.2010.05.006

Cited by 2 publications

(2 citation statements)

References 21 publications

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“…Their metal complexes are expected to be applied in asymmetric catalysis. For example, Constable et al synthesized the enantiopure hexadentate ligands (S)-81 and (R)-81 by the condensation of enantiopure (S)-(-)-1,1'-binaphthyl-2,2'-diamine or (R)-(+)-1,1'-binaphthyl-2,2'-diamine with two equivalents of 2,2'-bipyridine-6carbaldehyde in dry toluene[283]. In the presence of MeOH, the ligand (S,S,S)-82 has been obtained by diastereoselective addition of (S)-81 and MeOH(Fig.…”

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Recent developments in penta-, hexa- and heptadentate Schiff base ligands and their metal complexes

Liu

Hamon

2019

Coordination Chemistry Reviews

311

137

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Novel ligand platforms that promote reactivity are of long standing and continued interest in coordination chemistry, with Schiff base ligands and their metal complexes representing one of the most versatile and long standing topics of interest. The synthesis and structure of polydentate Schiff bases and their metal complexes is fascinating, because it reveals a great richness of structural, physico-chemical and catalytic properties. Given the simplicity and ease of access to multidentate Schiff bases and their metal complexes, investigation of such compounds is essential to precise and understand structure-property relationships in order to optimize and improve their use in a wide range of fields, including catalysis, supramolecular chemistry, magnetism, electrochemistry, nanoscience, energy materials, and biological applications. This review highlights the recent developments of pentadentate, hexadentate, heptadentate and macrocyclic Schiff base ligands containing various donor sets made of different combinations of N, O, S or P donor atoms and their metal complexes (essentially mononuclear), as well as presenting synthetic methods and interesting structures of complexes formed by first-to-third row transition metals (from group 4-12), main group elements, lanthanides and actinides. This review is divided into three main sections, each of them corresponding to one type of denticity of the Schiff base under consideration. Each category is described with representative examples according to a periodic order, and emphasis is given to the coordination aspects. Their catalytic, magnetic and biological properties are also outlined. This review that contains 359 references should act as a source of information to researchers interested to work in this domain and stimulate further investigation in this fascinating area of Schiff base coordination compounds.

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confidence: 99%

Recent developments in penta-, hexa- and heptadentate Schiff base ligands and their metal complexes

Liu

Hamon

2019

Coordination Chemistry Reviews

311

137

View full text Add to dashboard Cite

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“…Aunque reacciones de racemización o inversión parcial son poco comunes en el campo de la síntesis de bases de Schiff en disolución, comportamientos inesperados pueden ocurrir. Por ejemplo, se ha reportado recientemente un caso de adición diastereoselectiva y reversible de MeOH sobre los enlaces C=N de una bis-imina [10], un punto remarcable siendo que este comportamiento anómal de la base de Schiff fue descubierto por casualidad, cuando solo se pretendía mejorar el rendimiento de síntesis.…”

Section: Introductionunclassified

Conformación molecular y estructura cristalina de una diimina quiral: 1,4-BTS[(+)-(1-Feniletilimino)Metil)]Benceno

García

Flouriot

Hernández³

et al. 2010

QUIMICAHOY

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La síntesis de una nueva bis-imina quiralmente pura, de fórmula C24H24N2, se llevó a cabo por síntesis directa, en ausencia de disolvente, y la caracterización estructural se realizó por difracción de Rayos X en monocristal. Los grupos imino tienen la configuración E, común en aldiminas secundarias con un grupo estorboso sustituyendo el átomo de nitrógeno. Las moléculas se empacan en el estado sólido sin formar contactos intermoleculares significativos, a diferencia de sistemas imínicos y bis-imínicos cercanos, donde grupos aromáticos extendidos generan interacciones estabilizantes en el estado cristalino.

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A hexadentate Schiff base ligand which undergoes reversible, diastereoselective addition of methanol

Cited by 2 publications

References 21 publications

Recent developments in penta-, hexa- and heptadentate Schiff base ligands and their metal complexes

Recent developments in penta-, hexa- and heptadentate Schiff base ligands and their metal complexes

Conformación molecular y estructura cristalina de una diimina quiral: 1,4-BTS[(+)-(1-Feniletilimino)Metil)]Benceno

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