2-Bromo-4-methyl-5-nitropyridine (CAS# 23056-47-5)
| Zizindikiro Zowopsa | R20/21/22 - Zowopsa pokoka mpweya, kukhudzana ndi khungu komanso kumeza. R36/37/38 - Zokwiyitsa maso, kupuma komanso khungu. |
| Kufotokozera Zachitetezo | S26 - Mukakhudza maso, yambani nthawi yomweyo ndi madzi ambiri ndikupempha uphungu wachipatala. S37/39 - Valani magolovesi oyenera komanso chitetezo chamaso / kumaso |
| Kalasi Yowopsa | ZOKWIYA |
Mawu Oyamba
2-Bromo-4-methyl-5-nitropyridine ndi organic pawiri. Zotsatirazi ndizofotokozera za chikhalidwe chake, ntchito, njira yokonzekera ndi chidziwitso cha chitetezo:
Ubwino:
2-Bromo-4-methyl-5-nitropyridine ndi chinthu cholimba chokhala ndi makhiristo achikasu. Kutentha, nthawi zambiri samasungunuka m'madzi, koma amatha kusungunuka muzosungunulira organic monga ethanol ndi dimethylformamide.
Gwiritsani ntchito:
Pagululi nthawi zambiri amagwiritsidwa ntchito ngati wapakatikati mu kaphatikizidwe ka organic. Itha kugwiritsidwa ntchito pokonzekera mankhwala ena a nayitrogeni okhala ndi heterocyclic, monga pyrroles ndi indoles.
Njira:
2-Bromo-4-methyl-5-nitropyridine ikhoza kukonzedwa ndi kusintha kwa aniline. Pazifukwa zoyenera, aniline imachitidwa ndi bromoacetic acid kuti ipange 2-bromoaniline. Ndiye, mwa alkylation pansi pa zinthu zamchere, 2-bromoaniline ndi alkylated kuti apeze 2-bromo-4-methylaniline. Zotsatira za 2-bromo-4-methylaniline zimakhala ndi nitrification kuti zipeze 2-bromo-4-methyl-5-nitropyridine.
Zambiri Zachitetezo:
2-Bromo-4-methyl-5-nitropyridine ndi organic compound ndipo iyenera kusungidwa ndi kugwiritsidwa ntchito moyenera. Ndi chinthu choyaka ndipo chiyenera kusungidwa kutali ndi moto wotseguka komanso kutentha kwambiri. Pa ntchito, kukhudzana ndi khungu, maso, ndi kupuma thirakiti ayenera kupewedwa, ndi ntchito ayenera kuchitidwa pansi podutsa mpweya zinthu. Magolovesi oteteza, magalasi ndi masks ayenera kuvala akagwiritsidwa ntchito. Mukakhudzana mwangozi, muzimutsuka nthawi yomweyo ndi madzi ambiri ndikupita kuchipatala.
