Daim ntawv thov tshiab Ntawm Rare Earth Metals: Direct Synthesis Of Nitrogen-muaj Organic Compounds Los ntawm Nitrogen

Daim ntawv thov tshiab ntawm Rare Earth Metals: Direct Synthesis of Nitrogen-muaj Organic Compounds los ntawm Nitrogen
Tam sim no, yuav luag tag nrho cov khoom siv hluav taws xob uas muaj nitrogen-muaj cov organic tebchaw xav tau kev lag luam synthesis ntawm ammonia (NH3). Cov txheej txheem kev lag luam ammonia synthesis (Haber Bosch Process) muaj qhov mob hnyav heev. Nws tau kwv yees tias txhua xyoo kev siv hluav taws xob suav txog li 2 feem pua ​​​​ntawm kev siv hluav taws xob thoob ntiaj teb, xav tau txog 25 feem pua ​​​​ntawm cov peev txheej fossil thiab tsim cov pa roj tsev loj. Yog li ntawd, ib txoj hauv kev tseem ceeb los daws cov teeb meem saum toj no yog ncaj qha, ua tau zoo, thiab maj mam hloov nitrogen rau hauv nitrogen-muaj cov organic tebchaw yam tsis dhau NH3. Txawm li cas los xij, muaj ob peb cov ntaub ntawv qhia txog tam sim no, thiab cov tshuaj tiv thaiv catalytic tseem tsis tau ua tiav (saib Suav tshuaj xyuas: Kev sib txuas ncaj qha ntawm nitrogen-muaj cov organic tebchaw los ntawm nitrogen, Li Jiapeng, Yin Jianhao, Yu Chao, Zhang Wenxiong, Xi Zhenfeng, "Journal of Chemistry, 2017, 75733-743).
Tsis ntev los no, pawg tshawb fawb Xi Zhenfeng / Zhang Wenxiong tau ua tiav cov txheej txheem sib xyaw ua ke ntawm hydrazine derivatives ncaj qha los ntawm cov organic substrates xws li nitrogen, MeOTf, thiab electrophilic reagents, txhawb nqa los ntawm lub ntiaj teb tsis tshua muaj hlau scandium (Sc). Lawv sib cais thiab tus yam ntxwv (N2) 2? -, (N2) 3- Thiab (N2Me2) 2- Sc intermediate thiab pom tias CO tuaj yeem nkag tau zoo (N2Me2) 2- Sc ntawm Sc intermediate? Hauv N daim ntawv cog lus, kev sib txuas zoo ntawm N2 thiab CO tau ua tiav (Scandium Promoted Direct Conversion of Dinitrogen rau hauv Hydrazine Derivatives ntawm NC Bond Formation.Ze Jie Lv, Zhe Huang, Wen Xiong Zhang, * thiab Zhenfeng Xi, * J.Am. Chem . Soc. 20191418773? 8777).
Tsis tshua muaj ntiaj teb hlau scandium (Sc) ncaj qha hloov nitrogen rau hauv nitrogen-muaj cov organic tebchaw
Txoj haujlwm no ua tiav thawj zaug ntawm kev sib txuas ncaj qha ntawm nitrogen-muaj cov organic sib txuas los ntawm nitrogen txhawb los ntawm cov hlau tsis tshua muaj hauv ntiaj teb. Cov hlau tsis tshua muaj hauv ntiaj teb yog qhov tseem ceeb tshwj xeeb rau kev txhim kho ntawm Tuam Tshoj, thiab txoj haujlwm no qhia txog txoj hauv kev tshiab rau kev siv cov hlau tsis tshua muaj hauv ntiaj teb. Tus thawj coj ntawm lub thesis yog Lu Zejie, tus kws kho mob cov tub ntxhais kawm. Txoj haujlwm no tau txais kev txhawb nqa zoo los ntawm National Natural Science Foundation ntawm Tuam Tshoj, National Research Center for Molecular Sciences hauv Beijing, thiab Tsev Kawm Ntawv ntawm Chemistry ntawm Peking University.