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Organic photochemistry, vol. 4
314
Vol. 4, edited by A. Padwa, Marcel Dekker, New York, 1979, pp_ xii + 343, price SFr. 82.00.
Organic Photochemistry,
This volume follows the three earlier volumes edited by Orville Chapman but no change in the successful editorial policy is implied according to the preface to Vol. 4. Four areas of organic photochemistry have been chosen for the separate chapters. The topics are alkenes in solution (142 pp.), nonconjugated aryl olefins (47 pp.), cyclopropanes (70 pp.), and cyclopropene derivatives (66 pp.). Detai!ed references occur at the end of each chapter. The first chapter by P. J. Kropp will have the most general appeal to readers. It describes the possible excited singlet and triplet states of alkenes and then discusses the observed photochemical behaviour of both acyclic and cyclic alkenes in terms of the excited states. Triplet behaviour is the simpler because there is only one low lying excited state. Thus, sensitised irradiation usually produces one type of reaction depending on the structure of the olefin and the reaction conditions. In contrast, there are two or three low lying excited singlet states in close proximity so that several photochemical processes may compete. The rather special copper(I)-catalysed photoadditions are also noted. The chapter concludes with an account of styrenes. To help the experimentalist, some practical tips are included. The coverage is up to the end of 1978. The other, shorter, chapters by H. Morrison, S. S. Hixson, and A. Padwa, respectively, will be of particular use to workers in these more specialised fields. The book ends with author and subject indexes. Each chapter is a very good account of the current knowledge in its field and should prove to be a good entry point for understanding each of these now rather complex areas of organic photochemistry. C. J. T.
The Chemistry of Functional Groups. The Chemistry of Ketenes, Allenes, and Related Compounds, Parts 1 and 2, edited by S. Patai, Part 1: pp. xiv f 485,
Part 2: pp. xiv + 497, John Wiley/Interscience,
1980, price g35 (each Vol.).
In this new addition to Patai’s inimitable series on organic functional groups the subject matter is presented in 20 chapters by different and mainly American authors. Although ketenes and allenes were in fact discussed in the first volume of this series (the Chemistry of Alkenes) the growth of the subject in the past fifteen years and its importance fully justify a renewed and more extensive treatment. Organic chemists familiar with any of the previous volumes will feel at home with the general plan of the books, namely an introductory chapter treating general and theoretical aspects of the group
Vol. 4, edited by A. Padwa, Marcel Dekker, New York, 1979, pp_ xii + 343, price SFr. 82.00.
Organic Photochemistry,
This volume follows the three earlier volumes edited by Orville Chapman but no change in the successful editorial policy is implied according to the preface to Vol. 4. Four areas of organic photochemistry have been chosen for the separate chapters. The topics are alkenes in solution (142 pp.), nonconjugated aryl olefins (47 pp.), cyclopropanes (70 pp.), and cyclopropene derivatives (66 pp.). Detai!ed references occur at the end of each chapter. The first chapter by P. J. Kropp will have the most general appeal to readers. It describes the possible excited singlet and triplet states of alkenes and then discusses the observed photochemical behaviour of both acyclic and cyclic alkenes in terms of the excited states. Triplet behaviour is the simpler because there is only one low lying excited state. Thus, sensitised irradiation usually produces one type of reaction depending on the structure of the olefin and the reaction conditions. In contrast, there are two or three low lying excited singlet states in close proximity so that several photochemical processes may compete. The rather special copper(I)-catalysed photoadditions are also noted. The chapter concludes with an account of styrenes. To help the experimentalist, some practical tips are included. The coverage is up to the end of 1978. The other, shorter, chapters by H. Morrison, S. S. Hixson, and A. Padwa, respectively, will be of particular use to workers in these more specialised fields. The book ends with author and subject indexes. Each chapter is a very good account of the current knowledge in its field and should prove to be a good entry point for understanding each of these now rather complex areas of organic photochemistry. C. J. T.
The Chemistry of Functional Groups. The Chemistry of Ketenes, Allenes, and Related Compounds, Parts 1 and 2, edited by S. Patai, Part 1: pp. xiv f 485,
Part 2: pp. xiv + 497, John Wiley/Interscience,
1980, price g35 (each Vol.).
In this new addition to Patai’s inimitable series on organic functional groups the subject matter is presented in 20 chapters by different and mainly American authors. Although ketenes and allenes were in fact discussed in the first volume of this series (the Chemistry of Alkenes) the growth of the subject in the past fifteen years and its importance fully justify a renewed and more extensive treatment. Organic chemists familiar with any of the previous volumes will feel at home with the general plan of the books, namely an introductory chapter treating general and theoretical aspects of the group