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Book Review Reactive Intermediates. Volume 3. Edited by R. A. Abramovitch

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and vinegar) in 23 chapters. Because of their topical importance the subjects of the contamination of food and of
food additives have a chapter devoted to them.
The authors present a detailed account of the physical
and chemical properties of the important food components, in order to emphasize the relationship between
structure and properties at both the level of the ingredient
and of the foodstuff. This applies particularly in the case
of flavoring and taste. In order to limit the size of the book
the authors have concentrated on the chemistry of foods,
and, where possible, impart information in clearly arranged figures and tables. The large number of well-presented formulae and reaction schemes is also worth mentioning and is in favorable contrast to other-particularly
older-textbooks. A far-ranging discussion of the nutritional, technological, texicological and legal aspects of the
subject has been deliberately avoided. The information
concerning commodities and amounts produced, required
by the food chemist, is presented in an elegant, tabular review. The book also contains a range of analytical information which is relevant in judging foodstuffs.
In summary it may be said that this book gives a good
review of the modern state of food chemistry. The authors
have succeeded in presenting the subject synoptically and
precisely. It must not remain unmentioned that important
themes, such as cosmetics, commodities in relation to food
commerce and tobacco products, which are, nowadays, integrated in to food chemistry, are not treated at all. The
clear and comprehensive table of contents and index are
worthy of praise. This book is both highly suitable for students of food chemistry, chemistry and related subjects
and as a reference work and could well become one of the
standard works on the subject within a very short time.
However, in view of the high price it is questionable
whether it will achieve the circulation it deserves.
Reinhard Matissek [NB 592 IE]
Institut fur Lebensmittelchemie
der Technischen Universitat Berlin
Reactive Intermediates. Volume 3. Edited by R . A . Abramovitch. Plenum Press, New York 1983. xiv, 630 pp.,
bound, $ 59.50.
Three volumes of this open-ended series have now appeared, in quick succession (Volume 1: 1980; Volume 2:
1982; Volume 3: 1983). The contributions presented are intended to provide the interested reader with in-depth reviews of the present state of relatively new fields of the
chemistry of reactive intermediates. The aim is to give the
work as a whole-but not necessarily the individual chapters-an interdisciplinary character, dealing with themes
from widely separated fields, encompassing atmospheric,
biological, and industrial chemistry, as well as inorganic
and organic chemistry. Hence, this series has a somewhat
different objective from another series of the same name
(editors M . Jones Jr. and R. A . Moss, at present two volumes), which is devoted more to the current knowledge of
the conventional intermediates of organic chemistry (carbanions, carbocations, carbon radicals, carbenes and nitrenes).
The present volume, comprising seven chapters, begins
with a contribution on the chemistry of selenium and tellurium atoms (J. R . Marquart, R . L. Belford, and L. C. Graciano, 60 p.). Alongside their generation (excited electronic
states included) the reactions of these atoms are described,
such as recombination, abstraction, insertion into C-H
and Si-H bonds, as wcll as addition to C-C multiple
bonds. A wealth of energetic and kinetic data is assembled
into tables. The potential importance of these, to the nonspecialist exotic-seeming species, not only in intermediate
products and energy storage (lasers), is emphasized; the relationship with the chemistry of the lower chalcogens is
often accentuated by comparison.
A reaction type which was formally only of theoretical
interest, homolytic aromatic substitution by alkyl radicals,
is the subject of the second chapter ( M . Tiecco and L. Testaferri, 61 p.). In this field, considerable strides have been
made in recent years in the understanding of polar effects
on homolytic reactions. This type of reaction also forms
the basis of an interesting preparative technique, in particular for the synthesis of certain substituted aromatic heterocyclics. In the following sections J. W . Wilt reports on
radical reactions of silanes (85 p.) and W. G. Bentrude on
phosphoranyl radicals (99 p.). Besides the formation of the
radicals, their physical characteristics, isomerization behavior, reactions and synthetic potential are treated in detail.
The fifth contribution, by G . Szeimies, covers the numerous developments in the second half of the 1970s in the
field of strained olefins with bridgehead double bonds (67
p.). Bridged annulenes and compounds with hetero double
bonds are deliberately excluded. Emphasis is rather on the
syntheses and characterization reactions for individual
members of this class of reactive compounds, which is subdivided into three types. Generalizing answers to the interesting questions concerning the structure of strained C-C
double bonds rest on a rather small fundament of experimental structural and energetic data. -The reactivity of
alkoxyl radicals and their applications in synthesis are
dealt with by P. Brun and B. Waegell (59 p.). After describing the various routes to these short-lived intermediates, particular emphasis is placed on the various applications of their intra- and intermolecular reactions.
The extensive last chapter (2.Rappoport, 188 p.) is devoted to vinyl cations. In contrast to earlier reviews and to
a monograph co-authored by the same author that appeared in 1979, in which vinyl cations were discussed primarily in terms of the method of their generation or the nature of the activating group, a welcome attempt has been
made here to emphasize the similarities and differences between ions of different structural families and to view the
field as a whole.-The volume concludes with an index (13
p.), appropriate in size and detail to the work. An indication of the reactive intermediates treated in previous volumes would have been desirable, however.
All the chapters are compiled by experts, clearly written
and so constructed that even a newcomer to the field can
easily follow the latest developments. The relevant literature is covered up to 1980/81. Over 1500 original references illustrate, amongst other things, the depth of treatment of the material. Even though the price of the volume
may distract the interest of individuals in acquiring it, this
collection of comprehensive reviews belongs in every specialized library. The intention of informing the reader
about the importance of reactive intermediates outside his
specialized field, has also been fully taken into account by
the editor, for intermediates with reactive centers on elements so diverse as C, Si, P, 0, Se and Te are included.
Dieter Hasselmann [NB 609 IE]
Abteilung fur Chemie
der Universitat Bochum (FRG)
Angew. Chem. Int. Ed. Engl. 23 (1984) No. 3
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