Derivatisation of Betulin for industrial applications
نویسنده
چکیده
Research and development of renewable resources are highly relevant today because of the limited supply of oil and its emission of greenhouse gases. New sustainable material has to be found and the idea of this project is to investigate and create possible conditions for a polymer made of the renewable resource betulin. Betulin is a naturally occurring triterpene in birch bark. A combination of ready access and low cost makes betulin a perfect choice as raw material. In this study betulin was derivatised into monomers suitable for polymerization. The derivatisation was made on the hydroxyl groups using acrylates, allyls, epoxides and acetates as substituents. Promising monomers, considering yield of substitution, purity and ease of method, were synthesized using allyls, acryls and acetates. For the epoxide substitution and reaction with two of the acetates poor yield and costly purification was needed. Initial radical polymerization experiment was successfully made of the acrylic monomer.
منابع مشابه
Allobetulin and its derivatives: synthesis and biological activity.
This review covers the chemistry of allobetulin analogs, including their formation by rearrangement from betulin derivatives, their further derivatisation, their fusion with heterocyclic rings, and any further rearrangements of allobetulin compounds including ring opening, ring contraction and ring expansion reactions. In the last part, the most important biological activities of allobetulin de...
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