Chemical Technology
Article | July 20, 2022
An enzyme-mimicking catalyst opens a new route to important organic molecules such as glycolic acid and amino acids from pyruvate, report researchers in Japan. Moreover, the new catalyst is cheaper, more stable, safer and more environmentally friendly than conventional metal catalysts used in industry, they note, adding that it also displays the high enantioselectivity required by the pharmaceutical industry.
“On top of these advantages, our newly developed organic catalyst system also promotes reactions using pyruvate that aren’t easily achievable using metal catalysts,” says Santanu Mondal, a PhD candidate in the chemistry and chemical bioengineering unit at Okinawa Institute of Science and Technology (OIST) Graduate University, Okinawa, Japan, and lead author of a study recently published in Organic Letters.
“Organic catalysts, in particular, are set to revolutionize the industry and make chemistry more sustainable,” he stresses.
The researchers use an acid and an amine mixture to force the pyruvate to act as an electron donor rather than its usual role as an electron receiver (Figure 1).
Effectively mimicking how enzymes work, the amine binds to the pyruvate to make an intermediate molecule. The organic acid then covers up part of the intermediate molecule while leaving another part that can donate electrons free to react to form a new product.
Currently, the organic catalyst system only works when reacting pyruvate with a specific class of organic molecule called cyclic imines.
So, the researchers now are looking to develop a more-universal catalyst, i.e., one that can speed up reactions between pyruvate and a broad range of organic molecules.
The challenge here is to try to make the electron-donating intermediate stage of pyruvate react with other functional groups such as aldehydes and ketones. However, different catalysts create different intermediates, all with different properties. For example, the enamine intermediate created by the researchers’ new reaction only reacts with cyclic imines. Their hypothesis, currently being investigated, is that creation of other intermediates such as an enolate, if possible, would achieve a broader pyruvate reactivity.
In terms of cost, the researchers note that a palladium catalyst used in similar reactions is 25 times more expensive than their organic acid — which also is made from eco-friendly quinine.
In addition, they believe scale-up of the process for industrial use definitely is possible. However, the researchers caution that the current amine-to-acid-catalyst loading ratio of 1:2 probably would need to be optimized for better results at a larger scale.
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Chemical Technology
Article | August 8, 2022
Cybersecurity concerns must be considered in order for the chemical sector to succeed with digital commerce; simply listing your products on an online store and crossing your fingers won't cut it. It is crucial to pick a spouse who is aware of these hazards and has a strong defense in place. It is evident that the sector has massive potential for online sales, but selling chemicals online is different from selling common consumer goods online. Who your consumers are and how you gather and maintain data about them raise severe security and privacy problems.
Chemical company leaders have every right to be concerned about the privacy of their data, given that one cyber attack occurs every 11 seconds. However, they should still go online because there is too much business risk in not taking advantage of the digital opportunity.
Deloitte estimates that the chemical sector alone sold over $27 billion worth of goods online in 2020.
More than half (58%) of chemical purchasers reportedly stated that they would transfer providers if their demands, which include demands for a fantastic digital experience, were not delivered.
The objective is to limit risk and create a secure digital sales environment rather than dismissing e-commerce due to cybersecurity issues.
Setting up the appropriate IT infrastructure: Building for convenience and security is possible thanks to new IT technologies.
Emphasis on confirming identification: Always be aware of who you are dealing with, regardless of whether they came through a digital or physical means.
Offering simple (and safe) reorder alternatives to clients that have been verified.
It's ideal for business owners in the chemical sector who want to test selling online but are concerned about data collecting, security, and privacy for my company and customers.
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Chemical Technology
Article | August 2, 2022
Recent discoveries in the Guyana-Suriname basin attest to estimates of 10+ Bbbl of oil resources and more than 30 Tcf of gas.1 Like many oil & gas successes, this is a story that begins with early exploration success onshore, followed by a long period of exploration disappointment in coastal to shelf regions offshore, eventually culminating in deepwater success.
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Chemical Management
Article | June 13, 2021
NOBODY SHOULD be surprised that the developing world has fallen behind in the battle to reduce greenhouse gas emissions as the region is a long way from recovering from the pandemic.Evidence to this effect emerged last week in comments made by Fatih Birol, executive director of the International Energy Agency (IEA).
“In many emerging and developing economies, emissions are heading upwards while clean energy investments are faltering, creating a dangerous fault line in global efforts to reach climate and sustainable energy goals,” said Birol.
At the current rate, carbon dioxide emissions from developing countries largely in Asia, Africa and Latin America are set to increase by 5bn tonnes/year over the next two decades, according to the IEA, as access to power increases.At present, around 785m people worldwide have no access to electricity. There are also 2.6bn people without access to clean cooking options.
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