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Peking University scientists create a more efficient method to convert olefins into alkynes and show how abundant coal-related compounds can gain value by entering the route of molecules used in antibacterial, antiviral, and anticancer drugs, as well as pesticides and fine chemicals
A scientific discovery made in China could open a new path for the production of substances essential to modern medicine.
Researchers led by Jiao Ning, from Peking University, developed a simpler method to transform olefins, abundant and inexpensive compounds, into alkynes, rare and high-value molecules.
The study was published on March 16, in the journal Nature, and addresses a challenge in organic chemistry that had remained without a practical solution for over 160 years.
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According to the scientists, this conversion is highly relevant because alkynes appear in the manufacture of antibacterial, antiviral, and anticancer drugs, as well as pesticides.
Chinese discovery solves ancient chemical challenge
For decades, the transformation of olefins into alkynes required severe conditions.
Generally, traditional methods relied on high temperatures and aggressive reagents.
Therefore, practical application was limited, especially when molecules had sensitive parts.
In fact, these conditions could compromise important structures during the reaction.
Now, however, the Chinese team has found a more efficient route to perform this conversion.
With this, simple and widely available compounds can be transformed into more sophisticated chemical products.
Olefins and alkynes play a central role in industry
Olefins have a double bond between carbon atoms. They are considered relatively reactive and easy to obtain in large quantities.
Alkynes, on the other hand, have a triple bond between carbons.
Thus, these molecules exhibit different structural and chemical properties, which are fundamental for the synthesis of complex compounds.
In practice, this difference makes alkynes important for the production of substances used in pharmaceuticals and agricultural pesticides.
Therefore, converting olefins into alkynes in a simpler way represents a significant technical advance.
Selenanthrene emerges as a decisive piece
To achieve the result, the researchers used selenanthrene, a compound little explored in this type of reaction.
The substance had been synthesized for the first time back in the 19th century.
However, it had not been previously applied in this specific conversion.
According to the team, selenanthrene is able to temporarily bind to the olefin.
Then, it modifies its chemical structure.
Afterward, the compound is removed without leaving residues.
In this way, the reaction gains efficiency and avoids some of the obstacles observed in conventional methods.
Coal gains new function beyond plastics
In addition to its scientific impact, the discovery also draws attention for its industrial potential.
Currently, China already uses coal as a raw material to produce olefins.
With this strategy, the country reduces part of its dependence on imported oil.
However, these compounds are largely intended for the production of low value-added plastics.
Now, with the new technique, the same raw materials can take another path.
That is, they can be converted into more valuable and complex chemical substances.
Coal-based chemical industry can gain value
This change expands the possibilities of the Chinese coal-based chemical industry.
Instead of limiting olefins to the manufacture of common materials, the new route allows for products with higher added value.
Consequently, the discovery can strengthen sectors related to fine chemicals, medicines, and pesticides.
Still, the central point of the study lies in molecular innovation.
After all, researchers showed how abundant compounds can be transformed into rarer and more important structures.
What can this discovery represent for medicine?
Research published in Nature shows that a cheap raw material can play a strategic role in the production of molecules used in medicines.
With this, the advance reinforces how organic chemistry can still transform entire industrial chains.
If coal-linked olefins can become alkynes valued by medicine, how far can this new chemical route go?
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