Piperidine, one of the simplest heterocyclic systems, is found in nature as part of several alkaloid compounds. Both natural and especially unnatural piperidine derivatives present interesting pharmacological properties. From a structural viewpoint, the conformation of piperidine has been the subject of one of the fiercest controversies in structural organic chemistry in the last few years. As a result of the combined use of several spectroscopic techniques, the conformational behavior of most types of piperidine-related compounds has been clarified. Some piperidine derivatives, namely, N-acylpiperidine, &agr;-cyanopiperidines and piperidones are extremely useful and versatile intermediates in organic synthesis. The present book offers an updated and integrated view of all these topics. The aim of the book is twofold. Firstly, to reveal to the reader the combined use of different spectroscopic data, to facilitate an insight into the structure and conformational properties of any new piperidine derivative. Secondly, to establish a consistent link between conformation and reactivity for a variety of piperidine derivatives. Such a bridge is a key step for stereocontrol when dealing with the application of piperidine derivatives as synthetic intermediates. The book is conceived so that most of the information comes from visual inspection of the very abundant graphic material. An exhaustive subject index of more than 450 entries is also included.
In Defense of the Life of the Unborn By: Jesús A. Diez Canseco In Defense of the Life of the Unborn is a collection of thoughts in defense of the life of the unborn. It is divided in three chapters: namely: 1. Human life begins at conception, 2. The unborn child is a human being, and 3. Legalized abortion. In the current national debate over the issue of abortion, this book sides with the pro-life movement.
The author holds academic degrees in law, journalism and education. His professional practice also encompasses social work. Since 1981 he has been a permanent deacon for the Catholic Church, in which capacity he preaches and writes on a variety of subjects relating to his faith in God and his conviction on the value of human life. He lives in Montville, Connecticut.
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