The Diterpene Alkaloids: General Introduction

Autor:	S.W. Pelletier, L.H. Keith
Rok vydání:	1970
Předmět:	chemistry.chemical_compound chemistry Methylamine Stereochemistry Organic chemistry Molecule Dehydrogenation Phenanthrenes Ethylamine Diterpene Ring (chemistry) Benzoic acid
DOI:	10.1016/s1876-0813(08)60099-8
Popis:	Publisher Summary This chapter introduces diterpene alkaloids. The diterpene alkaloids are derived from tetracyclic or pentacyclic diterpenes in which carbon atoms 19 and 20 are linked with the nitrogen of a molecule of β-aminoethanol, methylamine, or ethylamine to form a heterocyclic ring. These alkaloids may be divided into two broad categories. The first group comprises the highly toxic ester bases that are heavily substituted by methoxyl and hydroxyl groups. The second group includes a series of comparatively simple and relatively nontoxic alkamines that are modeled on a C 20 -skeleton. One of the distinguishing chemical features of this group is the formation of phenanthrenes when subjected to selenium or palladium dehydrogenation. A few compounds of this class occur in the plant as monoesters of acetic or benzoic acid.
Databáze:	OpenAIRE
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