New Applications Of Rare Earth Metals: Direct Synthesis Of Nitrogen-containing Organic Compounds From Nitrogen

Yangi dasturlar of Rare Earth Metallar: To'g'ridan-to'g'ri sintez azot-tarkibida organik birikmalar dan azot
Currently, almost all artificially synthesized nitrogen-containing organic compounds require industrial synthesis of ammonia (NH3). The traditional industrial ammonia synthesis process (Haber Bosch Process) has extremely harsh conditions. It is estimated that annual energy consumption accounts for about 2 percent of global energy consumption, requiring about 25 percent of fossil resources and producing a large amount of greenhouse gases. Therefore, one of the important ways to solve the above problems is to directly, efficiently, and gently convert nitrogen into nitrogen-containing organic compounds without passing through NH3. However, there have been few relevant literature reports so far, and the catalytic reaction system has not yet been achieved (see Chinese review: Direct synthesis of nitrogen-containing organic compounds from nitrogen, Li Jiapeng, Yin Jianhao, Yu Chao, Zhang Wenxiong, Xi Zhenfeng, "Journal of Chemistry, 2017, 75733-743).
Recently, the Xi Zhenfeng/Zhang Wenxiong research group has achieved an efficient synthesis process of hydrazine derivatives directly from organic substrates such as nitrogen, MeOTf, and electrophilic reagents, promoted by rare earth metal scandium (Sc). They separated and characterized (N2) 2? -, (N2) 3- And (N2Me2) 2- Sc intermediate and found that CO can effectively insert (N2Me2) 2- Sc of Sc intermediate? In the N bond, efficient coupling of N2 and CO was achieved (Scandium Promoted Direct Conversion of Dinitrogen into Hydrazine Derivatives via N C Bond Formation.Ze Jie Lv, Zhe Huang, Wen Xiong Zhang, * and Zhenfeng Xi, * J.Am. Chem. Soc. 20191418773? 8777).
% 0aRare yer metall skandiy (Sc) toʻgʻridan-toʻgʻri natriy ni natriyga aylantiradi tarkibida organik birikmalar
erishilgan birinchi vaqt uchun to'g'ridan-to'g'ri sintez azot tarkibida organik birikmalar dan kam uchraydigan yer metallar tomonidan yo'lga qo'yiladi. Kam uchraydigan yer metallar uchun maxsus ahamiyatga ega bo'ladi rivojlanishi Xitoy, va bu ish 1 yangi yondashuv ga a yangi yondashuv ko'rsatadi kam uchraydigan yer metallar ning samarali utilizatsiyasi . The lead author of the the tezis is Lu Zejie, a doctoral student. Bu ish uchun kuchli qo'llab-quvvatlandi the The National Natural Science Foundation of China, the National Research Center for Molecular Sciences in Beijing, and the School of Chemistry at Peking University.