Latest News
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TWAS Executive Director Visits University of Chinese Academy of Sciences
On April 1, Prof. Marcelo Knobel, Executive Director of The World Academy of Sciences (TWAS), visited University of Chinese Academy of Sciences (UCAS). Wang Yanfen, Executive Vice President, and Lin Xiao, Vice President of UCAS, met with Prof. Marcelo Knobel at the Yuquanlu Campus.
Wang Yanfen met with Prof. Marcelo Knobel
Wang Yanfen extended a warm welcome to Prof. Marcelo Knobel. She fully recognized his achievements since assuming the office of TWAS Executive Director, as well as contributions to promoting cooperation and exchange among developing countries. She then reviewed the history of cooperation between UCAS and TWAS, highlighting the close collaboration in high-level international talent cultivation and personnel exchange.
Prof. Marcelo Knobel expressed gratitude to UCAS for the long-term in-depth cooperation with TWAS and its associated organizations. He highly commended UCAS for cultivating international scientific talents through the implementation of CAS-ANSO-TWAS/UNESCO Scholarship Program. He hopes that UCAS will continue to train young talents in developing countries, actively participate in the development of the Organization for Women in Science for the Developing World (OWSD), and strengthen support for young women scientists from developing countries.
The two sides engaged in discussions on promoting global South-South cooperation to address climate change, advancing sustainable development, and expanding talent training for developing countries.
Prior to the meeting, Prof. Marcelo Knobel held a discussion with 11 international students of UCAS awarded with the CAS-ANSO-TWAS/UNESCO Scholarship Program, a sub-programme under the Belt and Road Alliance for International Science Organization Scholarships (ANSO). They exchanged views on the implementation of the scholarship program, cross-cultural exchange activities, and research progress.
Prof. Marcelo Knobel discussed with scholarship awardees
The representative from the Bureau of International Cooperation, Chinese Academy of Sciences, attended the meeting.
More information：
TWAS was founded in 1983 by Nobel laureate in Physics, Professor Abdus Salam, headquartered in Trieste, Italy. It is a non-governmental, non-political, and non-profit international scientific organization dedicated to supporting and promoting scientific research in developing countries. TWAS comprises two subsidiary bodies: the InterAcademy Partnership (IAP) and OWSD. Since 2014, UCAS has successively cultivated international students through CAS-TWAS Scholarship Program and the ANSO-CAS-TWAS/UNESCO Scholarship Program.
Author: Office for International Cooperation and Exchanges
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Research News
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Chinese scientists develop breakthrough method for aromatic amine applications
BEIJING, Nov. 16 (Xinhua) -- A Chinese research team has developed an advanced method to overcome long-standing challenges in the application of aromatic amines, promising a safer and more efficient alternative to an old industrial process, according to a study recently published in the journal Nature.
The research, led by Zhang Xiaheng from the Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, introduces a novel strategy that efficiently converts inert aromatic carbon-nitrogen bonds into various crucial chemical bonds.
Aromatic amines are fundamental structural components widely found in pharmaceuticals, agrochemicals and natural products. However, their potential as versatile building blocks in synthesis has remained underdeveloped.
For over a century, industrial practices have relied on converting aromatic amines into diazonium salts -- intermediates known for their high explosiveness and instability. This conventional approach suffers from significant drawbacks, including safety hazards, excessive copper reagent consumption, and limited substrate compatibility.
To address these challenges, the research team spent three years dedicated to exploring direct activation pathways for aromatic amines. Ultimately, they successfully developed a novel direct deaminative functionalization technology using common and inexpensive laboratory reagents.
The new method offers significant advantages for poly-nitrogen heterocyclic systems commonly used in drug synthesis. With simple and readily available laboratory reagents, it exhibits excellent versatility -- applicable to almost all types of medicinal heteroaromatic amines and aniline derivatives with diverse electronic properties and structures, regardless of amino group position. Moreover, it enables kilogram-scale production through straightforward operations.
This research opens up a new pathway for rapidly constructing complex molecules from readily available starting materials, offering significant potential for advancing research and development in medicinal chemistry, Zhang said.
Source: Xinhua
Editor: GAO Yuan
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