3-Cyano-4-methylpyridine (CAS # 5444-01-9)
3-Cyano-4-methylpyriridine yog ib qho organic compound nrog cov tshuaj formula C7H6N2. Hauv qab no yog cov lus piav qhia ntxaws txog nws qhov xwm txheej, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb:
Xwm:
-Cov tsos mob: 3-Cyano-4-methylpyriridine yog dawb mus rau daj crystalline khoom.
- Melting point: Nws melting point yog 66-69 degrees Celsius.
-Solubility: Nws muaj tsawg solubility nyob rau hauv dej thiab yog yaj nyob rau hauv ntau cov organic solvents, xws li ethanol, ether thiab chloroform.
Siv:
-Raws li cov organic synthesis reagent: 3-Cyano-4-methylpyriridine tuaj yeem siv los ua cov tshuaj reagent rau kev sib txuas ntawm lwm cov organic sib txuas, xws li tshuaj tua kab, tshuaj thiab dyes.
-Raws li catalyst: Nws kuj tseem siv tau los ua ib qho catalyst hauv qee cov tshuaj tiv thaiv catalytic.
Txoj Kev Npaj:
3-Cyano-4-methylpyriridine tuaj yeem npaj los ntawm cov hauv qab no:
1. pyridine thiab acetonitrile undergo cyanation cov tshuaj tiv thaiv los tsim 3-cyanopyridine, thiab tom qab ntawd raug cov tshuaj tiv thaiv methylation los tsim 3-Cyano-4-methylpyriridine.
2. Methyl pyridine reacts nrog hydrogen cyanide los tsim 3-Cyano-4-methylpyriridine nyob rau hauv lub catalysis ntawm alkali.
Cov ntaub ntawv kev nyab xeeb:
Cov khoom siv tshuaj lom neeg ntawm3-Cyano-4-methylpyridinetsis tau kawm tag nrho, yog li nws yuav tsum tau ua raws li cov txheej txheem kev sim tshuaj lom neeg. Hnav cov cuab yeej tiv thaiv tus kheej tsim nyog xws li cov hnab looj tes tiv thaiv, tsom iav thiab cov tsho hauv chav kuaj thaum siv. Nws yuav tsum tau khaws cia thiab tuav kom zoo kom tsis txhob muaj kev sib cuag nrog cov khoom xws li cov oxidants muaj zog. Nyob rau hauv tus txheej txheem ntawm kev ua hauj lwm, yuav tsum tau them nyiaj mloog kom tsis txhob inhalation, daim tawv nqaij sib cuag los yog noj. Yog tias muaj xwm txheej cuam tshuam tshwm sim tsis tu ncua, kev kho mob xwm txheej ceev yuav tsum tau ua raws sijhawm. Kev paub txog chemistry thiab kev kuaj sim hauv kev tuav cov khoom sib xyaw kom ntseeg tau tias muaj kev nyab xeeb. Txhawm rau kom nkag siab ntxiv txog nws txoj kev nyab xeeb, thov xyuas qhov cuam tshuam txog kev nyab xeeb kev qhia tshwj xeeb lossis nrog tus kws tshaj lij.
