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A new approach to the sensible use of carbon dioxide from car exhaust gases

car exhaust
Credit: Unsplash/CC0 Public Domain

Using impure CO2 from car exhaust, the team of Prof. Dr. Shoubik Das, Chair of Organic Chemistry I at the University of Bayreuth, presents a cost-effective synthetic route for γ-lactams. γ-Lactam is an organic chemical compound, which is an inhibitory neurotransmitter. This means that CO2, which is frequently produced anyway, can be put to good use. Valuable chemicals and pharmaceuticals can be combined with this CO2. The paper is published in the journal Nature Communications.

The paper, "Straightforward synthesis of functionalized γ-Lactams using impure CO2 stream as the carbon source," discusses a new method for using CO2, a common greenhouse gas, in the synthesis of valuable chemicals and pharmaceuticals.

"Traditional approaches have focused on using pure CO2 gas, but we propose a novel idea that utilizes impure CO2 streams, such as those from industrial flue gas or car exhaust gas," explains Prof. Dr. Shoubik Das, Chair of Organic Chemistry I at the University of Bayreuth.

"The main motivation behind this approach is to reduce the air pollution caused by the accumulation of CO2 and the cost and energy associated with the purification of CO2."

The paper introduces a specific application of this method for producing γ-lactams, which are essential components in various natural products and pharmaceuticals.

"We aim to streamline the synthesis of γ-lactams from readily available materials, like amines and alkenes, while using impure CO2 as a ," says Das.

The significance of this research lies in its potential to provide a more straightforward and sustainable way to produce valuable compounds from waste such as CO2. The authors emphasize the environmental and economic benefits of their approach, making it a noteworthy contribution to the field of CO2 utilization in .

With this new approach, Prof Das and his team want to develop a sustainable strategy to reduce and air pollution caused by CO2. The Bayreuth scientists Yuman Qin, Suman Pradhan, Rakesh Maitin and Shoubhik Das are hoping for three effects:

  • Environmental impact: by using impure CO2 streams, the process offers a more environmentally friendly way to use , contributing to efforts to reduce greenhouse gas emissions.
  • Cost efficiency: The approach aims to minimize the costs associated with the purification of CO2, which could make the synthesis of important chemicals and drugs more cost-effective in the long term.
  • Pharmaceutical development: The specific application of this method to produce γ-lactams, essential components of pharmaceuticals, suggests a simpler and more sustainable route to drug synthesis. This could have a downstream impact on the and potentially lead to more accessible and affordable medicines.

This could benefit the industry, environmental sciences and drug research. "A method has been discovered that uses impure CO2 streams and enables a breakthrough in the of valuable chemicals and pharmaceuticals," says Prof. Das.

More information: Yuman Qin et al, Straightforward synthesis of functionalized γ-Lactams using impure CO2 stream as the carbon source, Nature Communications (2023). DOI: 10.1038/s41467-023-43289-w

Journal information: Nature Communications

Citation: A new approach to the sensible use of carbon dioxide from car exhaust gases (2023, November 27) retrieved 23 February 2024 from https://phys.org/news/2023-11-approach-carbon-dioxide-car-exhaust.html
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