Abstract
A variety of natural and unnatural molecules containing a 5-hydroxyindole moiety have displayed strong pharmacological activities. In this context the Nenitzescu reaction has proven to be extremely useful for the preparation of 5- hydroxyindoles directly from simple and accessible materials like 1,4-benzoquinone and enamines. This review will summarize recent applications for the synthesis of complex 5-hydroxyindole derivatives such as pyrimido[4,5-b]indol-4- amines, 5H-benzo[b]carbazoles, 5-hydroxynaltrindolomorphinans, and 3-[3-(amidomethyl)-2-ethyl-1-(phenylmethyl)- 1H-indol-5-yloxy]propylphosphonic acid (LY311727) which possess important biological activities. The Mechanism of the Nenitzescu reaction is discussed and as is recent utilization of solid phase chemistry to the Nenitzescu reaction.
Call for Papers in Thematic Issues
Catalytic C-H bond activation as a tool for functionalization of heterocycles
The major topic is the functionalization of heterocycles through catalyzed C-H bond activation. The strategies based on C-H activation not only provide straightforward formation of C-C or C-X bonds but, more importantly, allow for the avoidance of pre-functionalization of one or two of the cross-coupling partners. The beneficial impact of ...read more
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