Tom ntej: 4-hydroxybenzene-1 3-dicarbonitrile (CAS # 34133-58-9)
Taw qhia
Nws yog ib qho organic compound. Nws cov qauv molecular yog C8H5NO2, cov qauv qauv yog HO-C6H3 (CN)2.
yog ib qho xim tsis muaj xim nrog cov ntxhiab tsw phenol. Nws muaj lub siab melting point thiab boiling point, soluble nyob rau hauv organic solvents xws li ethers, alcohols thiab ketones, insoluble nyob rau hauv dej.
Kev siv lub ntsiab ntawm qhov sib xyaw no yog ib qho tseem ceeb hauv nruab nrab ntawm cov organic synthesis. Nws tuaj yeem siv rau hauv kev sib txuas ntawm cov polyesters tshiab rau kev npaj cov khoom siv kho qhov muag, hluav taws xob thiab tshuaj. Tsis tas li ntawd, nws tseem tuaj yeem siv los ua cov khoom siv raw rau kev ua haujlwm nplaum thiab txheej txheej.
Txoj kev npaj ntawm cov txheej txheem yog qhov nyuaj dua. Ib txoj hauv kev tseem ceeb yog cov tshuaj tiv thaiv ntawm p-phenolate sulfate nrog sodium cyanide nyob rau hauv alkaline tej yam kev mob los tsim 4-hydroxy-2-phenylbenzonitrile, uas yog ces tau los ntawm acid-catalyzed decarboxylation.
Thaum siv thiab tuav, koj yuav tsum tau xyuam xim rau cov teeb meem kev nyab xeeb. Nws muaj qee yam khaus khaus, zam kev sib cuag ntawm daim tawv nqaij thiab nqus pa. Cov cuab yeej tiv thaiv tsim nyog, xws li cov hnab looj tes kuaj thiab cov cuab yeej tiv thaiv ua pa, yuav tsum hnav thaum ua haujlwm. Tsis tas li ntawd, kev sib cuag nrog cov tshuaj oxidizing thiab cov kua qaub muaj zog yuav tsum zam kom tsis txhob muaj kev phom sij txaus ntshai. Thaum lub sijhawm khaws cia, khaws cia kom deb ntawm qhov hluav taws kub thiab qhov chaw kub, thiab khaws lub ntim ntim kom tsis txhob muaj qhov kub thiab txias.
