Active Metals: Preparation, Characterization, Applications by Alois Fürstner

By Alois Fürstner

Reactions with metals are ubiquitous in natural synthesis and, fairly within the previous couple of years, a wide repertoire of equipment for the activation of metals and for his or her use in natural synthesis has been built. In lively Metals, subject matters starting from morphology of steel clusters and nanometallurgy to organometallic chemistry, catalysis and using activated metals in typical product synthesis are authoritatively mentioned by way of best specialists within the field.

energetic Metals will let you totally enjoy the contemporary advances within the box by means of giving:

* particular experimental procedures
* advice on manipulation of lively metals lower than inert atmosphere
* invaluable details for making plans syntheses
* vast tables of average conversions with yields
* significantly chosen, up to date references

This guide is a different resource of 'hands-on' info to be able to let you extend the scope of your examine.

Content:
Chapter 1 Rieke Metals: hugely Reactive steel Powders ready by way of Alkali steel aid of steel Salts (pages 1–59): Reuben D. Rieke, Matthew S. promote, Walter R. Klein, Tian?An Chen, Jeffrey D. Brown and Mark V. Hanson
Chapter 2 Allylic Barium Reagents (pages 61–84): Akira Yanagisawa and Hisashi Yamamoto
Chapter three The McMurry response (pages 85–131): Thomas Lectka
Chapter four Ultrasound?Induced Activation of Metals: rules and functions in natural Synthesis (pages 133–190): Jean?Louis Luche and Pedro Cintas
Chapter five coaching and functions of Functionalized Organozinc Reagents (pages 191–236): Paul Knochel
Chapter 6 steel Atom/Vapor methods to lively steel Clusters/Particles (pages 237–278): Kenneth J. Klabunde and Galo Cardenas?Trivino
Chapter 7 Electrochemical equipment within the Synthesis of Nanostructured Transition steel Clusters (pages 279–297): Manfred T. Reetz, Wolfgang Helbig and Stefan A. Quaiser
Chapter eight The Magnesium path to energetic Metals and Intermetallics (pages 299–338): L. E. Aleandri and B. Bogdanovic
Chapter nine Catalytically energetic steel Powders and Colloids (pages 339–379): Helmut Bonnemann and Werner Brijoux
Chapter 10 Supported Metals (pages 380–426): Alois Furstner
Chapter eleven Morphological concerns on Metal?Graphite mixtures (pages 427–446): Ferdinand Hofer

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Extra info for Active Metals: Preparation, Characterization, Applications

Example text

Upon warming to 0 "C, 3 reacted with COZ to yield the magne- Q -78OC (fN7 L $s CO," Q El I H30+ Scheme 1-11. Formation of y-lactams. 2 Rieke Mugrzesiurn, Calcium, Strontium, tirid Buriurn 23 Table 1-11. Reactions of conjugated diene-magnesium reagents with imines followed by acidic hydrolysis. Entry Dicne Imine Product Yielda) (%) 2 92 96 85 ~~ ~ a) Isolated yields based on the imine. sium salt of a y-amino acid (5). Acidic hydrolysis followed by warming to 40 "C generated p-( 1-methylethenyl)-/3-methyl-y-phenyl-N-benzyllactam(7)in 67% isolated yield as a 75 : 25 mixture of diastereomers (Table 1-10, entry 2).

Table 1-4. Reactions of magnesium complexes of 1,2-dimethylenecycloalkaneswith bis-electrophiles. Entry Dimea) Electrophile Yieldb) (96) Product Reaction conditionc) A la la Br(CH2)4Br la Br(CH2)dBr la la a 75(81) 81 (CH,),Br 75(87) 14 I Riekr Metals: Highly Rructive Metal Powders Table 1-4. (continued) Entry Dieilea) Electrophilc Product Yieldb)(a) Reaction condition'" 7 la -(78) F 8 la 415) B 9 la 440) B 10 la 52(67) €3 11 Ib 60(70) D 12 lc 73 C 13 Ic 77(86) D 14 Ic 46(59) R 15 la 89 B a) (1 a) 1,2-bis(methylene)cyclohexane; (1 b) 1,2-bis(methylene)cycIopentane; ( I c) I ,2-bis(methylene)cycloheptane.

The addition of Lewis acids, such as BF3 . Et20, did not have as dramatic an effect upon product formation as did TMSCI. These thienyl-based organocopper reagents are very efficient for conjugate addition reactions, the ideal ratio of organocopper reagent to enone being as low as 2 : 1. The use of larger excesses of the organometallic reagent (10 equiv) has been reported in the literature Table 1-23. Cross-coupling reactions of thienyl-based organocopper reagents with acid chloridcs. Entry 5 6 7 8 9 10 11 12 13 14 Halide Acid chloride Product PhCOCl PhCOCl PhCOCl PhCOCl PhCO(CH2)7CH3 PhCO(CH2)3CO*Et PhCO(CH2)3CN PhCO(CH&,CI PhCOCl PhCOCl PhCOCl n-BuCOC1 PhCOCl PhCOCl PhCOCl PhCOCl PhCOCl PhCOCl Yield (Oh) 73 47 61 42 65 86 87 63 75 62 81 90 93 44 Table 1-24.

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