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Titlebook: Ultrasound in Synthesis; Steven V. Ley,Caroline M. R. Low Book 1989 Springer-Verlag Berlin Heidelberg 1989 alkali metal.aluminium.lithium.

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书目名称Ultrasound in Synthesis
编辑Steven V. Ley,Caroline M. R. Low
视频video
丛书名称Reactivity and Structure: Concepts in Organic Chemistry
图书封面Titlebook: Ultrasound in Synthesis;  Steven V. Ley,Caroline M. R. Low Book 1989 Springer-Verlag Berlin Heidelberg 1989 alkali metal.aluminium.lithium.
描述The effects of heat and light on chemical reactions have long been known and un­ derstood. Ultrasound has been known to promote chemical reactions for the past 60 years, but despite this, it did not attract the attention of synthetic chemists until recently. This arose historically from early studies which concentrated almost exclu­ sively on reactions in aqueous media and was also, in some measure, due to the availability of suitable technology. Since the early 1980s a plethora of literature has appeared of direct interest to synthetic chemists and the field has been developing rapidly. The aim of this book is to bring the background of this fascinating field to the atten­ tion of a wider audience. It explores the literature to date and attempts to indicate other areas in which ultrasound may be exploited. It also hopes to explode some of the myths surrounding this area which have hitherto been regarded by the synthetic community as a bit of a black art! Existing books and reviews have tended to concentrate on the physics of sonochem­ istry and to catalogue the instances in which ultrasound has proved useful in tack­ ling synthetic problems. Our aim has been to stress the relevanc
出版日期Book 1989
关键词alkali metal; aluminium; lithium; magnesium; metals; synthesis; transition metal; ultrasound; zinc
版次1
doihttps://doi.org/10.1007/978-3-642-74672-7
isbn_softcover978-3-642-74674-1
isbn_ebook978-3-642-74672-7Series ISSN 0341-2377
issn_series 0341-2377
copyrightSpringer-Verlag Berlin Heidelberg 1989
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Ultrasonic Acceleration of Organic Reactions,nometallic systems and a number of useful procedures for transformations involving non-metals have been published. For instance, amines can be iV-alkylated by alkyl halides in the presence of potassium hydroxide and a phase transfer catalyst [175]. .-benzyl glycine was readily prepared in high yield
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Ultrasonic Acceleration of Redox Reactions,ctions that would more commonly be executed under homogeneous conditions. For instance, the reduction of aryl halides with lithium aluminium hydride occurs extremely slowly in THF solution. However, Han and Boud- jouk have reported that the reaction can be carried out in a fraction of the time if th
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The Effects of Ultrasound on Transition Metal Catalysts,[239]. However, it has also been clearly shown that palladium and platinum blacks prepared by reduction of the metal salts in the presence of formaldehyde had up to 30% greater surface areas and showed increased activity in a number of representative reactions. These included the decomposition of wa
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Transition Metal Carbonyls and Ultrasound, to be available from a variety of substrates [255]. For example, they may be prepared from alkenyl epoxides or various butenediols [256] and their derivatives by treatment with tetracarbonyl iron [257]. Work in our laboratories had shown that these were useful precursors for a wide range of natural
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