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Touched by Light: Photoexcited Stannyl Anions Are Great for Producing Organotin Compounds


Published: May 14, 2021
Scientists at Tokyo Institute of Technology developed a new strategy for producing a wide range of organotin compounds, which are the building blocks of many organic synthesis methods. Their approach is based on the photoexcitation of stannyl anions, which alters their electronic state and increases their selectivity and reactivity to form useful compounds. This protocol will be helpful for the efficient synthesis of many bioactive products, novel drugs, and functional materials.
Organotin compounds, also known as stannanes, are made of tin (Sn), hydrocarbons, and sometimes other elements like nitrogen and oxygen. During the 1970s, stannanes rapidly took the spotlight as building blocks in the field of organic synthesis mainly because of their use as reagents in the Stille reaction, which remains essential for chemists to combine various organic molecules. ....

United States , Chao Wang , Ken Tanaka , Kyoka Sakamoto , Masanobu Uchiyama , Kazunori Miyamoto , Yuki Nagashima , Shinshu University , Scientists At Tokyo Institute Of Technology , Chemical Technology , School Of Pharmaceutical Sciences , Tokyo Institute Of Technology , Cluster For Pioneering Research , Department Of Chemical Science , Journal Of The American Chemical Society , Information On School Of Materials , University Of Tokyo , School Of Materials , Research Initiative For Supra , Tokyo Institute , New Type , American Chemical , Assistant Professor Yuki Nagashima , American Chemical Society , Pharmaceutical Sciences , Chemical Science ,

Novel method for rapid and efficient separation of oxygen-18 from oxygen-16


Novel method for rapid and efficient separation of oxygen-18 from oxygen-16
Positron Emission Tomography (PET) plays a major role in the early detection of various types of cancer. A research group led by Specially Appointed Professor Katsumi Kaneko of the Research Initiative for Supra-Materials (RISM), Shinshu University have discovered a method to separate oxygen-18 from oxygen-16, an essential isotope for PET diagnosis, at high speed and high efficiency. The results of this research were recently published online in the journal
Nature Communications.
The novel method for the rapid and efficient separation of O-18 from O2-16, which is abundant in the atmosphere, was carried out with nanoporous carbon, which is made of pores smaller than 1 nanometer. When a mixture of O2-16 and O2-18 is introduced into the nanoporous carbon, the O2-18 is preferentially adsorbed and is efficiently separated from O2-16. The experimental separation of O2-18 from O2-16 was also conducted ....

United States , Katsumi Kaneko , Emily Henderson , Karl Johnson , Drexel University , Nature Communications , Shinshu University , University Of Pittsburgh , Professor Yury Gogotsi Drexel University , Research Initiative For Supra , Emission Tomography , Specially Appointed Professor Katsumi Kaneko , Research Initiative , Yury Gogotsi Drexel University , Professor Kaneko , Professor Gogotsi , Positron Emission Tomography , ஒன்றுபட்டது மாநிலங்களில் , காட்சுமி காநெக்கோ , எமிலி ஹென்டர்சன் , கார்ல் ஜான்சன் , ட்ரெக்செல் பல்கலைக்கழகம் , இயற்கை தகவல்தொடர்புகள் , ஷீன்ஷு பல்கலைக்கழகம் , பல்கலைக்கழகம் ஆஃப் பிட்ஸ்பர்க் , ஆராய்ச்சி முயற்சி க்கு சூப்பரா ,