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Six-membered heterocyclic nitrogen compounds with four condensed rings
468
BOOK
REVIEWS
Canada, the Netherlands, and Yugoslavia are contributors. The presentations in many cases have been reviewed and commented on by other workers than the immediate authors, a feature which adds to the value of the presentation. While it can hardly be expected that an inexperienced worker can become an expert in the field by perusal of the material here presented, it affords a starting point, and the critical judgment of experienced workers in the field and the excellent and extensive bibliographies afford opportunities for more extensive study. The volume maintains the high standard set by the previous volumes of the series and is a most useful contribution to the methodology of medical research. HOWARD B. LEWIS, Ann Arbor, Michigan
Six-Membered Heterocyclic Nitrogen Compounds with Four Condensed Rings. By C. F. H. ALLEN, Eastman Kodak Co., Rochester, New York; in collaboration with D. M. BURNESS, JEAN V. CRAWFORD, F. W. SPANGLER, E. R. WEBSTER, and C. V. WILSON. Interscience Publishers, New York, 1951. 358 pp. Price $10.00. (By special subscription: $9.00.) The subject matter in this book, which is the second volume to appear of a series of monographs on the chemistry of heterocyclic compounds, is stated in the title. However, compounds which contain a nitrogen atom common to two rings are not described since it is expected that these heterocyclic compounds will be dealt with in one of the more than 25 volumes which are now in preparation. The seven chapters in the book are entitled: Azanaphthacenes, Azabenz[a]anthracenes, Azabenzo[c]phenanthrenes, Azachrysenes, Azatriphenylenes, Azabenzanthrenes, and Azapyrenes. The compounds in each chapter are grouped in accordance with the number and position of the nuclear nitrogen atoms. For example, in the first chapter mono-, di-, tri-, and tetrazanaphthacenes are described; under the monoaza compounds the three theoretically possible l-, 2-, and B-azanaphthacenes and their known derivatives are discussed. In the case of each parent compound some or all of the following aspects are discussed: history, nomenclature, structure, preparation, properties, reactions, and uses. In most instances the data which concern derivatives of parent oompounds, such as references, melting points of the bases as well as their salts, colors and other properties, are presented in tabular form. The literature is covered through 1950. The authors mention that the compounds with which this book deals are not only of considerable interest to the drug and dye industry but are also of great theoretical interest and historical importance. Some indication of the possibilities for future developments can be gained from the statement that only 3 of the 143 possible tetrazanaphthacenes have been synthesized. The authors are to be highly commended for the systematic presentation of the subject matter, the clarification of the diverse and confusing nomenclature found in the literature, and the thorough coverage of the field which includes numerous references to original publications. F. F. BLICKE, Ann Arbor, Michigan
BOOK
REVIEWS
Canada, the Netherlands, and Yugoslavia are contributors. The presentations in many cases have been reviewed and commented on by other workers than the immediate authors, a feature which adds to the value of the presentation. While it can hardly be expected that an inexperienced worker can become an expert in the field by perusal of the material here presented, it affords a starting point, and the critical judgment of experienced workers in the field and the excellent and extensive bibliographies afford opportunities for more extensive study. The volume maintains the high standard set by the previous volumes of the series and is a most useful contribution to the methodology of medical research. HOWARD B. LEWIS, Ann Arbor, Michigan
Six-Membered Heterocyclic Nitrogen Compounds with Four Condensed Rings. By C. F. H. ALLEN, Eastman Kodak Co., Rochester, New York; in collaboration with D. M. BURNESS, JEAN V. CRAWFORD, F. W. SPANGLER, E. R. WEBSTER, and C. V. WILSON. Interscience Publishers, New York, 1951. 358 pp. Price $10.00. (By special subscription: $9.00.) The subject matter in this book, which is the second volume to appear of a series of monographs on the chemistry of heterocyclic compounds, is stated in the title. However, compounds which contain a nitrogen atom common to two rings are not described since it is expected that these heterocyclic compounds will be dealt with in one of the more than 25 volumes which are now in preparation. The seven chapters in the book are entitled: Azanaphthacenes, Azabenz[a]anthracenes, Azabenzo[c]phenanthrenes, Azachrysenes, Azatriphenylenes, Azabenzanthrenes, and Azapyrenes. The compounds in each chapter are grouped in accordance with the number and position of the nuclear nitrogen atoms. For example, in the first chapter mono-, di-, tri-, and tetrazanaphthacenes are described; under the monoaza compounds the three theoretically possible l-, 2-, and B-azanaphthacenes and their known derivatives are discussed. In the case of each parent compound some or all of the following aspects are discussed: history, nomenclature, structure, preparation, properties, reactions, and uses. In most instances the data which concern derivatives of parent oompounds, such as references, melting points of the bases as well as their salts, colors and other properties, are presented in tabular form. The literature is covered through 1950. The authors mention that the compounds with which this book deals are not only of considerable interest to the drug and dye industry but are also of great theoretical interest and historical importance. Some indication of the possibilities for future developments can be gained from the statement that only 3 of the 143 possible tetrazanaphthacenes have been synthesized. The authors are to be highly commended for the systematic presentation of the subject matter, the clarification of the diverse and confusing nomenclature found in the literature, and the thorough coverage of the field which includes numerous references to original publications. F. F. BLICKE, Ann Arbor, Michigan