2-Bromo-4-methyl-5-nitropyridine (CAS# 23056-47-5)
| Iikhowudi zoMngcipheko | I-R20/21/22 – Iyingozi ngokuphefumla, xa udibana nolusu naxa uginyiwe. R36/37/38 – Ukucaphuka kwamehlo, inkqubo yokuphefumla kunye nolusu. |
| Inkcazelo yoKhuseleko | S26 – Xa udibana namehlo, hlambulula ngokukhawuleza ngamanzi amaninzi kwaye ufune iingcebiso zonyango. I-S37/39 -Nxiba iiglavu ezifanelekileyo kunye nokukhusela amehlo / ubuso |
| IKlasi yeeNgozi | OKUTHUMEKAYO |
Intshayelelo
I-2-Bromo-4-methyl-5-nitropyridine i-organic compound. Oku kulandelayo sintshayelelo kubume bayo, ukusetyenziswa, indlela yokulungiselela kunye nolwazi lokhuseleko:
Umgangatho:
I-2-Bromo-4-methyl-5-nitropyridine yinto eqinileyo kunye neekristale eziphuzi. Kwiqondo lobushushu begumbi, ayifane inyibilike emanzini, kodwa inokunyibilika kwizinyibilikisi eziphilayo ezifana ne-ethanol kunye ne-dimethylformamide.
Sebenzisa:
Le khompawundi isoloko isetyenziswa njengendawo ephakathi kwi-organic synthesis. Ingasetyenziselwa ukulungiswa kwezinye i-nitrogen-containing heterocyclic compounds, njenge-pyrroles kunye ne-indoles.
Indlela:
I-2-Bromo-4-methyl-5-nitropyridine inokulungiswa ngokusabela kokutshintshwa kwe-aniline. Ngaphantsi kweemeko ezifanelekileyo, i-aniline iphendulwa nge-bromoacetic acid ukuvelisa i-2-bromoaniline. Emva koko, nge-alkylation phantsi kweemeko ze-alkaline, i-2-bromoaniline i-alkylated ukufumana i-2-bromo-4-methylaniline. Isiphumo se-2-bromo-4-methylaniline i-nitrification nge-nitrification ukufumana i-2-bromo-4-methyl-5-nitropyridine.
Ulwazi ngoKhuseleko:
I-2-Bromo-4-methyl-5-nitropyridine i-organic compound kwaye kufuneka igcinwe kwaye isetyenziswe ngokuchanekileyo. Yinto enokutsha kwaye kufuneka igcinwe kude namadangatye avulekileyo kunye namaqondo obushushu aphezulu. Ngexesha lokusebenza, ukudibana nolusu, amehlo, kunye nendlela yokuphefumula kufuneka kugwenywe, kwaye ukusebenza kufuneka kuqhutywe phantsi kweemeko zomoya. Iiglavu ezikhuselayo, iiglasi kunye neemaski kufuneka zinxitywe xa zisetyenziswa. Kwimeko yokudibanisa ngengozi, hlambulula ngokukhawuleza ngamanzi amaninzi kwaye ufune unyango.
