Functionalised N-Heterocyclic Carbene Complexes / Edition 1 by Olaf Kuhl | 9780470712153 | Hardcover | Barnes & Noble
Functionalised N-Heterocyclic Carbene Complexes / Edition 1

Functionalised N-Heterocyclic Carbene Complexes / Edition 1

by Olaf Kuhl
     
 

ISBN-10: 0470712155

ISBN-13: 9780470712153

Pub. Date: 03/15/2010

Publisher: Wiley

N-heterocyclic carbenes (NHCs) have found increasing use as reagents for a range of organic transformations and in asymmetric organocatalysis. The performance of these molecules can be improved and tuned by functionalisation. Functionalised carbenes can anchor free carbenes to the metal site, introduce hemilability, provide a means to immobilise transition metal

Overview

N-heterocyclic carbenes (NHCs) have found increasing use as reagents for a range of organic transformations and in asymmetric organocatalysis. The performance of these molecules can be improved and tuned by functionalisation. Functionalised carbenes can anchor free carbenes to the metal site, introduce hemilability, provide a means to immobilise transition metal carbene catalysts, introduce chirality, provide a chelate ligand or bridge two metal centres. NHC can be attached to carbohydrates and campher, derived from amino acids and purines, they can be used as organocatalysts mimicking vitamin B1 or as weak “solvent” donors in lanthanide chemistry.

Functionalised N-Heterocyclic Carbene Complexes describes major trends in functionalised NHC ligands, aiming to assist readers in their attempts to develop and apply their own functionalised carbenes. After an introduction to the chemistry and behaviour of NHC, the book gives a detailed description of functionalised carbenes and their complexes according to a range of functional groups, each with a discussion of the synthetic route, structure, stability and performance.

Functionalised N-Heterocyclic Carbene Complexes is an essential guide to fine-tuning this important class of compounds for practitioners, researchers and advanced students working in synthetic organometallic and organic chemistry and catalysis.

Product Details

ISBN-13:
9780470712153
Publisher:
Wiley
Publication date:
03/15/2010
Pages:
364
Product dimensions:
6.80(w) x 9.90(h) x 1.00(d)

Table of Contents

Abbreviations vii

Introduction 1

Chapter 1 The Nature of N-Heterocyclic Carbenes 7

1.1 Synthesis

1.1.1 Synthesis of the Imidazolium Salts

1.1.2 Closing the Ring

1.1.3 Synthesis of the Free Carbenes

1.1.4 Synthesis of Transition Metal Complexes of NHC

1.2 Properties of NHC

1.2.1 The Internal Electronic Structure

1.2.2 Basicity of NHC

1.2.3 Steric Properties

1.2.4 The Carbene-Metal Bond

1.2.5 Decomposition Pathways

References

Chapter 2 Why Functionalisation?

2.1 Phosphane Mimic

2.2 Hemilability

2.3 Chirality

2.3.1 Planar Chirality

2.3.2 Axial Chirality

2.4 Ligand Geometry

2.5 Catalysis

2.5.1 Allylic Alkylation

2.5.2 Coupling Reactions

2.5.3 Olefin Metathesis

2.5.4 Polymerisations

2.5.5 Organocatalysis

References

Chapter 3 N-Heterocyclic Carbenes with Neutral Tethers

3.1 Amine Functionalities

3.1.1 Heteroaromatic Functional Groups

3.1.2 Oxazolines

3.1.3 Imino Functional Groups

3.1.4 Amino Functionalised NHC

3.2 Oxygen-Containing Groups

3.3 Phosphane Functionalities

3.4 Bis-Carbene Ligands

3.5 Tris-N-Heterocyclic Carbene Ligands

3.6 Pincer Carbenes

References

Chapter 4 N-Heterocyclic Carbenes with Anionic Functional Groups 199

4.1 Oxygen-Containing Groups

4.2 Nitrogen-Containing Groups

4.3 NHC Ligands Incorporating Cp Moieties

4.4 Transition Metal NHC Complexes Involved in the Activation of C-H Bonds

4.5 Immobilisation of the Catalyst

4.6 Sulfur-Containing Functional Groups

References

Chapter 5 Chiral N-Heterocyclic Carbenes 279

References

Chapter 6 Natural Products 309

6.1 Thiazole

6.1.1 Isolation and Stability of Thiazolylidene

6.1.2 Benzothiazoles

6.1.3 Metal Complexes

6.2 Amino Acids

6.3 Purines and Xanthines

6.4 Carbohydrates

6.5 Miscellaneous

References

Index 347

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