Chemical Synthesis Using Highly Reactive Metals

Written by the creator of Rieke metals, valuable for chemical reaction methods and efficiency, this groundbreaking book addresses a significant aspect of organic and inorganic chemistry. The author discusses synthetic methods, preparation procedures, chemical reactions, and applications for highly reactive metals and organometallic reagents. Addresses a new generation of chemistry that goes beyond the standard use of metals and activation Provides step-by-step guidelines, chemical equations, and experimental descriptions for handling metals including zinc, magnesium, copper, indium, nickel, manganese, calcium, barium, iron, palladium, platinum, uranium, thorium, aluminum, cobalt, and chromium Uses a unique approach to highlight methods and techniques that make chemical synthesis and activation of Rieke metals more safe and efficient Discusses novel applications and special topics, such as highly reactive metals for novel organometallic reagents, semiconducting polymers, plastics electronics, photovoltaics, and the Reformatsky reagent

Auteur

Reuben D. Rieke, PhD, is internationally recognized for his pioneering work in the development of highly reactive metals, the synthesis of highly regioregular 3-alkylpolythiophenes, and novel organometallic reagents. In 1991, Dr. Rieke founded Rieke Metals, Inc. He has 38 years of academic experience teaching organic chemistry and has published over 225 papers and been awarded over 25 patents.

Texte du rabat

Metal chemistry has transformed throughout the years from basic origins and standard activation to providing a variety of methodological options for synthetic chemists to use, prepare, and apply metals. A significant breakthrough occurred the 1970's, with the introduction of Rieke metals, which are highly reactive metal powders that have a high surface area and lack surface oxides.

Written by the creator of Rieke metals, valuable for chemical reaction methods and efficiency, Chemical Synthesis Using Highly Reactive Metals is a groundbreaking book addressing a significant aspect of organic and inorganic chemistry. The author discusses synthetic methods, preparation procedures, chemical reactions, and applications for highly reactive metals and organometallic reagents. It covers all the information that a chemist needs in order to handle, prepare, and apply Rieke highly reactive metals with innovative techniques.

The opening chapters provide a comprehensive introduction about properties and general methods of preparation and subsequent ones highlight different metals with step-by-step guidance, experimental descriptions, and applicable chemical equations. Overall, the book presents methods for more safe and efficient synthesis, preparation, and activation. In addition, it features novel applications for chemical industries including plastic electronics, polymers, photovoltaics, and organic light-emitting devices.

Chemists relying on this book will find a valuable resource for research and development that:

• Addresses a new generation of chemistry that goes beyond the standard use of metals and activation
• Provides guidelines and details for handling metals including zinc, magnesium, copper, indium, nickel, manganese, calcium, barium, iron, palladium, platinum, uranium, thorium, aluminum, cobalt, and chromium
• Uses a unique approach to highlight methods and techniques that make chemical synthesis and activation of Rieke metals more safe and efficient
• Discusses novel applications and special topics, such as highly reactive metals for semiconducting polymers, plastic electronics, photovoltaics, and the Reformatsky reagent and novel organometallic reagents

Contenu

Preface xvii

1 Genesis of Highly Reactive Metals 1

2 General Methods of Preparation and Properties 5

2.1 General Methods for Preparation of Highly Reactive Metals 5

2.2 Physical Characteristics of Highly Reactive Metal Powders 8

2.3 Origin of the Metals' High Reactivity 9

References 10

3 Zinc 13

3.1 General Methods for Preparation of Rieke Zinc 13

3.2 Direct Oxidative Addition of Reactive Zinc to Functionalized Alkyl, Aryl, and Vinyl Halides 16

3.3 Reactions of Organozinc Reagents with Acid Chlorides 20

3.4 Reactions of Organozinc Reagents with ,?-Unsaturated Ketones 27

3.5 Reactions of Organozinc Reagents with Allylic and Alkynyl Halides 30

3.6 Negishi Cross?-Coupling of Vinyl and Aryl Organozinc Halides 34

3.7 Intramolecular Cyclizations and Conjugate Additions Mediated by Rieke Zinc 42

3.8 The Formation and Chemistry of Secondary and Tertiary Alkylzinc Halides 44

3.9 Electrophilic Amination of Organozinc Halides 50

3.10 Reformatsky and Reformatsky?-Like Reagents and Their Chemistry 52

3.11 Configurationally Stable Organozinc Reagents and Intramolecular Insertion Reactions 54

3.12 Preparation of Tertiary Amides via Aryl, Heteroaryl, and Benzyl Organozinc Reagents 55

3.13 Preparation of 5?-Substituted?-2?-Furaldehydes 61

3.14 Preparation and Chemistry of 4?-Coumarylzinc Bromide 73

3.15 Preparation and Cross?-Coupling of 2?-Pyridyl and 3?-Pyridylzinc Bromides 77

3.16 Preparation of Functionalized ?-Chloromethyl Ketones 106

3.17 Rieke Zinc as a Reducing Agent for Common Organic Functional Groups 108

3.18 Detailed Studies on the Mechanism of Organic Halide Oxidative Addition at a Zinc Metal Surface 111

3.19 Regiocontrolled Synthesis of Poly(3?-Alkylthiophenes) Mediated by Rieke Zinc: A New Class of Plastic Semiconductors 133

4 Magnesium 161

4.1 General Background and Mechanistic Details of Grignard Reaction 161

4.2 General Methods for Preparation of Rieke Magnesium 165

4.3 Grignard Reagent Formation and Range of Reactivity of Magnesium 167

4.4 1,3?-Diene?-Magnesium Complexes and Their Chemistry 172

4.5 Regioselectivity of Reaction of Complexes with Electrophiles 173

4.6 Carbocyclization of (1,4?-Diphenyl?-2?-butene?-1,4?-diyl) magnesium with Organic Dihalides 175

4.7 1,2?-Dimethylenecycloalkane?-Magnesium Reagents 175

4.8 Synthesis of Fused Carbocycles, ?-?-Unsaturated Ketones, and 3?-Cyclopentenols from Conjugated Diene?-Magnesium Reagents 178

4.9 Synthesis of Spiro?-?-Lactones and Spiro?-?-Lactones from 1,3?-Diene?-Magnesium Reagents 184

4.10 Synthesis of ?-Lactams from Conjugated Diene?-Magnesium Reagents 190

4.11 Low?-Temperature Grignard Chemistry 192

4.12 Typical Procedures for Preparation of Active Magnesium and Typical Grignard Reactions as Well as 1,3?-Diene Chemistry 197

5 Copper 209

5.1 Background of Copper and Organocopper Chemistry 209

5.2 Development of Rieke Copper 210

5.3 Phosphine?-Based Copper 211

5.4 Lithium 2?-Thienylcyanocuprate?-Based Copper 220

5.5 Copper Cyanide?-Based Active Copper 224

5.6 Formal Copper Anion Preparation and Resulting Chemistry 228

5.7 Typical Experimental Details of Copper Chemistry 232

6 Indium 241

6.1 Background and Synthesis of Rieke Indium 241

6.2 Preparation of Organoindium Compounds 241

6.3 Preparation and Reactions of Indium Reformatsky Reagents 246

6.4 Experimental Details for Preparation and Reactions of Activated Indium 250

7 Nickel 255

7.1 Preparation of Rieke Nickel, Characterization of Active Nickel Powder, and Some Chemistry 255

7.2 Preparation of 3?-Aryl?-2?-hydroxy?-1?-propane by Nickel?-Mediated Addition of Benzylic Halides to 1,2?-Diketones 261

7.3 Preparation of 3?-Arylpropanenitriles by Nickel?-Mediated Reaction of Benzylic Halides with Haloacetonitriles 265 7.4 Reformatsky?-Type Additions of Haloacetonitriles to Aldehydes Mediated by ...