2-Bromo-4-methyl-5-nitropyridine (CAS# 23056-47-5)
| Amakhodi Engozi | R20/21/22 – Kuyingozi ngokuhogela umoya, ukuthintana nesikhumba futhi uma ukugwinyile. R36/37/38 – Ukucasula amehlo, uhlelo lokuphefumula kanye nesikhumba. |
| Incazelo Yokuphepha | S26 – Uma uthintana namehlo, geza ngokushesha ngamanzi amaningi futhi ufune iseluleko sezokwelapha. I-S37/39 – Gqoka amagilavu afanelekile kanye nokuvikela iso/ubuso |
| I-Hazard Class | I-IRRITANT |
Isingeniso
I-2-Bromo-4-methyl-5-nitropyridine iyinhlanganisela yezinto eziphilayo. Okulandelayo yisingeniso sobunjalo bayo, ukusetshenziswa, indlela yokulungiselela kanye nolwazi lokuphepha:
Ikhwalithi:
I-2-Bromo-4-methyl-5-nitropyridine into eqinile enamakristalu aphuzi. Ezingeni lokushisa lasekamelweni, ayincibiliki emanzini, kodwa ingancibilika kuzincibilikisi zemvelo ezifana ne-ethanol ne-dimethylformamide.
Sebenzisa:
Le nhlanganisela ivame ukusetshenziswa njengendawo ephakathi ku-organic synthesis. Ingasetshenziswa ekulungiseleleni ezinye izinhlanganisela ze-heterocyclic ezine-nitrogen, njenge-pyrroles nama-indoles.
Indlela:
I-2-Bromo-4-methyl-5-nitropyridine ingalungiswa ngokusabela esikhundleni se-aniline. Ngaphansi kwezimo ezifanele, i-aniline isabela nge-bromoacetic acid ukukhiqiza i-2-bromoaniline. Bese, nge-alkylation ngaphansi kwezimo ze-alkaline, i-2-bromoaniline i-alkylated ukuze ithole i-2-bromo-4-methylaniline. Umphumela we-2-bromo-4-methylaniline u-nitrification nge-nitrification ukuze uthole i-2-bromo-4-methyl-5-nitropyridine.
Ulwazi Lokuphepha:
I-2-Bromo-4-methyl-5-nitropyridine iyinhlanganisela yezinto eziphilayo futhi kufanele igcinwe futhi isetshenziswe ngendlela efanele. Kuyinto evuthayo futhi kufanele igcinwe kude namalangabi avulekile kanye namazinga okushisa aphezulu. Ngesikhathi sokusebenza, ukuthintana nesikhumba, amehlo, kanye nendlela yokuphefumula kufanele kugwenywe, futhi ukusebenza kufanele kwenziwe ngaphansi kwezimo zomoya. Amagilavu okuzivikela, izibuko kanye nemaski kufanele kugqokwe uma kusetshenziswa. Uma uthintana ngephutha, hlambulula ngokushesha ngamanzi amaningi futhi ufune usizo lwezokwelapha.
