Heterocycles in Life and Society is an introduction to the chemistry of heterocyclic compounds, focusing on their origin and occurrence in nature, biochemical significance and wide range of applications. Written in a readable and accessible style, the book takes a multidisciplinary approach to this extremely important area of organic chemistry.

Topics covered include an introduction to the structure and properties of heterocycles; the key role of heterocycles in important life processes such as the transfer of hereditary information, how enzymes function, the storage and transport...

Advances in Heterocyclic Chemistry, Volume 103, deals with the organic chemistry of heterocyclic compounds, namely, photochromic dihetarylethenes, pyrido 1,2-a]azepines and their hydro derivatives, and 2-amino-4H-pyrans. Divided into three chapters, the book examines advances in the synthesis of these three compounds, including dithienylethenes that are derived from photochemically induced isomerizations between the cis- and trans-forms and cyclized derivatives.
The book first looks at the synthesis of photochromic dihetarylethenes, such as perfluorocyclopentene-bridged dihetarylethenes,...

Established in 1960, Advances in Heterocyclic Chemistry is the definitive serial in the area--one of great importance to organic chemists, polymer chemists and many biological scientists. Written by established authorities in the field, the comprehensive reviews combine descriptive chemistry and mechanistic insight and yield an understanding of how the chemistry drives the properties.

• Established in 1960, Advances in Heterocyclic Chemistry is the definitive serial in the area - one of great importance to organic chemists, polymer chemists and many biological...

Established in 1960, Advances in Heterocyclic Chemistry is the definitive serial in the area--one of great importance to organic chemists, polymer chemists and many biological scientists. Written by established authorities in the field, the comprehensive reviews combine descriptive chemistry and mechanistic insight and yield an understanding of how the chemistry drives the properties.

• One of great importance to organic chemists, polymer chemists and many biological scientists
• Written by established authorities in the field, the comprehensive reviews combine...

Die entsprechenden Dbersichten in Kapitel 4 findet man in den Abschnitten 4.II, 4.II1 und 4.IV. 2. Grundlagen der Elektronentheorie der organischen Chemie* Die organische Chemie hat sich heute so weit entwickelt, daB man die groBe Mehrzahl aller Reaktionen durch eine Aufeinanderfolge einzelner Schritte erklaren und korrelieren kann, wobei sich diese Schritte ihrer seits in wenige einfache, grundlegende Reaktionstypen unterteilen lassen. Bei jeder organischen Reaktion werden Bindungen gel6st und/oder gebildet. Eine chemische Bindung besteht aus zwei Elektronen, die zwei Atomen gemeinsam...